


Time Limit:1000MS  Memory Limit:65536K

Description
Сʱסũϼңϼҵɽܸߣÿĵʱɽ˵ʱɽҲ˵ͬĻȻѾˣǻǳʱĹ£룺һ¶ʱָоѽ! 
ģĳ 

Input
жУÿΪһַַֻĸɣַΪ15EOF

Output
ÿ룬ͬݡ

Sample Input
Hello
TQ

Sample Output
Hello
TQ

Source
tangqiao@BNU
