#include<bits/stdc++.h> using namespace std; int main(){ int a=5,b=8,c=12; printf("%.3lf\n%d %d\n%d %d\n%d %d",(a+b+c)*1.0/3,39/a,39%a,39/b,39%b,39/c,39%c); return 0; }