#include <stdio.h>
/* 10進2進変換 */
void binary(int n){
if(n==0){
return;
}
else{
;binary(n/2);
}
}
int main(void) {
int a;
binary(a);
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgovKiAxMOmAsjLpgLLlpInmj5sgKi8Kdm9pZCBiaW5hcnkoaW50IG4pewoJaWYobj09MCl7CgkJcmV0dXJuOwoJfQoJZWxzZXsKCQk7YmluYXJ5KG4vMik7CgkJO3ByaW50ZigiJWQiLG4lMik7Cgl9Cn0KCgppbnQgbWFpbih2b2lkKSB7CglpbnQgYTsKCQoJc2NhbmYoIiVkIiwgJmEpOwoJYmluYXJ5KGEpOwoJCglyZXR1cm4gMDsKfQo=