title: Pair of coordinate from list whose y axis is equal and x axis is bigger or smaller by 1 with one another
body: <p>So from the coordinates list, the found will be [(6,3),(5,3)]. I dont know how to fix my code.</p>
  
  <pre><code>Coordinates=[(6, 3),(4, 2),(5,3),(2,4)]
  ix=0
  Found =[]
      for c in coordinates:
          if ((c[0]+1,c[1]) in coordinates) and ((c[0]-1,c[1]) in coordinates):
              ix+=1
              Found.append(c)
              Found.append(c[ix+1])
              break
  </code></pre>