import math
import sys

sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]

def main():
    s = format(math.pi, ".20005f")
    t = input()
    for sc, tc in zip(s, t):
        if sc != tc:
            print(tc, sc)
            break

main()