def resolve():
    s = input()
    print('x'*len(s))
resolve() def resolve():
    s = input()
    print('x'*len(s)) resolve s = input() s input() input print('x'*len(s)) print 'x'*len(s) 'x' len(s) len s resolve() resolve def resolve():
    s = input()
    print('x'*len(s)) def resolve():
    s = input()
    print('x'*len(s)) resolve
def resolve():
    s = input()
    print('x'*len(s))
resolve()