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