#!/usr/bin/python3.4

class Word:
    s = ""
    t = ""

    def __init__(self, s, t):
        self.s = s
        self.t = t

    def canConcat(self):
        ww = self.t
        for a in self.s:
            contain = False
            for c in self.t:



        print ww


mode = raw_input().strip()

w = mode.split(" ")

x = Word(w[0], w[1])

x.canConcat()