#include <stdio.h>
#define a 3
#define people 3
int main(int argc, char *argv[])
{
  int CHENGJI[a][3],sum[3];
  float average[3];
  int i,j;1
  printf("请输入成绩：\n");
  for(i=0;i<3;i++)
{
      for(j=0;j<a;j++)
{
       scanf("%d",&CHENGJI[j][i]);
      }
}
      for(i=0;i<3;i++)
{     sum[i]=0;
      for(j=0;j<3;j++)
      {
         
      sum[i]=sum[i]+CHENGJI[j][i];
      average[i]=sum[i]/3;
      }
      
}
       for(i=0;i<3;i++)
  {printf("sum:%d\n average：%d\n",sum[i],average[i]);}
  
    return 0;
}