#include<stdio.h>
main ( ) {
int japanese,history,sience;
int all,heikin;
printf("国語の点数＝");
scanf("%d",&japanese);
printf("社会の点数＝");
scanf("%d",&history);
printf("理科の点数＝");
scanf("%d",&sience);
all = japanese + history +sience;
heikin = all / 3;
printf("合計は%d 平均は%dです。\n",all,heikin);
return 0;
}