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