#include <stdio.h>
main()
{
int kor[100],eng[100],math[100],sum[100];
int i=0,j,c;
float av[100];
char a;
for(i=0;i<=100;i++){
while(1){
printf("insert kor : ");
scanf("%d",&kor[i]);
if(100 <= kor[i] >= 0)
break;
kor[i]=-1;
}
printf("insert eng : ");
scanf("%d",&eng[i]);
printf("insert math : ");
scanf("%d",&math[i]);
sum[i] = kor[i]+eng[i]+math[i];