text: def foo():
      a=1
      b=2
      c=3
      d=4
      e=5
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      if a == 1:
          if b == 2:
              if c == 3:
                  if d == 999:
                      x = 20
                  elif d == 998:
                      x = 40
                  elif d == 4:
                      if e != 5:
                          x = 20
                      else:
                          x = 50
      assert x