#include <stdio.h>
int main(void) {
int x = 123;
while (x > 0){
x = x /10;
}
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CgkKCWludCB4ID0gMTIzOwoKICAgIHdoaWxlICh4ID4gMCl7CiAgICAgICAgcHJpbnRmKCIlZCIsIHggJSAxMCk7CiAgICAgICAgeCA9IHggLzEwOwogICAgfQogICAgCglyZXR1cm4gMDsKfQo=