'''print("chandan")
print("enter two values")
x=int(input())
y=int(input())
z=x+y
print(z)
for i in range(10):
    print(' '*n,end='')
    print('* '*i)
    n-=1
for x in range(1,10):
    for y in range(1,10):
        print('{:6}'.format(x*y), end='')
    print()'''
