#include <stdio.h>
#include <stdarg.h>
int main() {
char string[7];
char str1[] = "a";
char str2[] = "b";
sprintf(string
, "0 %s %s\n", str1
, str2
); return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxzdGRhcmcuaD4KCmludCBtYWluKCkgewogICAgY2hhciBzdHJpbmdbN107CiAgICBjaGFyIHN0cjFbXSA9ICJhIjsKICAgIGNoYXIgc3RyMltdID0gImIiOwogICAgc3ByaW50ZihzdHJpbmcsICIwICVzICVzXG4iLCBzdHIxLCBzdHIyKTsKICAgIHByaW50ZigiWyVzXSIsIHN0cmluZyk7CiAgICByZXR1cm4gMDsKfQo=