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