#include <stdio.h>
int main(void) {
//Learn all about c programming
return 0;
}
CSNpbmNsdWRlIDxzdGRpby5oPgogCmludCBtYWluKHZvaWQpIHsKICAgcHJpbnRmKCJIZWxsbyBXb3JsZCEiKTsKICAgcHJpbnRmICgiLi5CeWUuLiIpOwogICBwcmludGYgKCIuLkJ5ZS4uXG4iKTsKICAgcHJpbnRmICgiSGVsbG8gJiBhZ2FpbiFcbiIpOwogIC8vTGVhcm4gYWxsIGFib3V0IGMgcHJvZ3JhbW1pbmcKICAgcmV0dXJuIDA7Cn0=