class str(str):
    def __mul__(__________):
          if isinstance(other, str) and len(other) == len(self):
                # 交替合并字符串
                return ''.join([self[i] + other[i] for i in range(len(self))])
          else:
                return __________ # 调用父类的乘法操作


s1 = str(input())
s2 = str(input())
print(s1 * s2)
print(s1 * len(s2))