#include <stdio.h>
main()
{int j=1,i=1;
 float score[35],max=0.0,min=0.0,aver,sum=0.0;
 scanf("%f",&score[i];
 max=score[1];
 min=score[1];
 sum=score[1];
 i++;
 while(1)
 {printf("input %d score",i);
  scanf("%f",&score[i]);
  if (score [i]<0) break,
  if (score[i]>max) max=score[i];
  if (score[i]<min) min=score[i];
  sum+=score[i];
  i++;
 }
 aver=sum/(i-1);
 for (j=1;j<i;j++)
 {printf("%f",score[j]);
  if(j%5==0) putchar ("\n");
 }
 printf("max=%f,min=%f,aver=%f",max,min,aver);
}