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