#include <stdio.h>
int main(){
int n = 3;
float arr[3] = {40, 80, 60};
float m = 0;
int i;
float sum = 0;
for(i = 0; i < n; i++)
m = arr[i] > m ? arr[i] : m;
for(i = 0; i < n; i++){
arr[i] = arr[i]/ m * 100;
sum += arr[i];
}
printf("%.2f", sum / n);
return 0;
}