#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ printf("%.3lf",(5+8+12)/3.0); cout<<39/5<<39%5<<endl; cout<<39/8<<39%8<<endl; cout<<39/12<<39%12<<endl; return 0; }