<reponame>uninhm/kyopro
# Vicfred
# https://atcoder.jp/contests/abc154/tasks/abc154_b
# simulation
s = input()

answer = 'x'*len(s)

print(answer)


# Vicfred
# https://atcoder.jp/contests/abc154/tasks/abc154_b
# simulation
s = input()

answer = 'x'*len(s)

print(answer)
# Vicfred # https://atcoder.jp/contests/abc154/tasks/abc154_b # simulation