>130
scanf("%d",&N);
tbl=(int *)malloc(sizeof(int)*N);
sum=0;
rank_a=rank_b=rank_c=rank_d=0;
for(i=0; i<N; ++i){
scanf("%d", tbl+i);
sum+=tbl[i];
if(tbl[i]>=80) ++rank_a;
else if(tbl[i]>=70) ++rank_b;
else if(tbl[i]>=60) ++rank_c;
else ++rank_d;
}
printf("総和:%d,平均:%.1f\n",sum,(double)sum/N);
prinf("80〜100:%d、70〜79:%d、60〜69:%d、59以下:%d\n",rank_a,rank_b,rank_c,rank_d);