fork download
def f(x, n):
  return sum(map(int, str(x)[-n:]))

print(f(123456789, 1))
print(f(123456789, 2))
print(f(123456789, 3))

print(f(123, 1))
print(f(123, 2))
print(f(123, 3))
print(f(123, 4))
print(f(123, 5))
Success #stdin #stdout 0.02s 9308KB
stdin
Standard input is empty
stdout
9
17
24
3
5
6
6
6