#include<bits/stdc++.h> using namespace std; int main(){ double A,B,P; A = 5; B = 8; P = 12; printf("%.3lf\n ", (A+B+P)/3.0); printf("%lf %lf\n", 38/A, 39%a) ; printf("%lf %lf\n", 38/B, 39%B) ; printf("%lf %lf\n", 38/P, 39%P) ; return 0; }