#include <stdio.h>
int main(void) {
// your code goes here
float a,b,c;
scanf("%f%f%;",&a
,&b
,&c
); return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCiAgICBmbG9hdCBhLGIsYzsKICAgIHNjYW5mKCIlZiVmJTsiLCZhLCZiLCZjKTsKICAgIHByaW50ZigiJS4zZiIsKGErYitjKS8zKTsKCXJldHVybiAwOwp9Cg==