#include <stdio.h>
#define  N  30
main()
{
int xdata i,s0=0,s1=0,s2=0,s3=0,s4=0;
  float xdata score[N],max;
  for (i=0 ;i<N ;i++ )           
scanf("%f",&score[i]);
  max=0;
for(i=0;i<N;i++);                
    {
     if(max<score[i])  max=score[i];
     if(score[i]>=90)      s0++;
     else if (score[i]>=80)  s1++;
     else if (score[i]>=70)  s2++;
     else if (score[i]>=60)  s3++;
     else                s4++;
    }
  printf ("最高分數為%5.2f\n",max);
  printf ("優：%d\n良：%d\n中：%d\n及格：%d\n 不及格：%d\n",s0,s1,s2,s3,s4);
}