>>634
#include<stdio.h>
#include<ctype.h>
int main(void){int c,i,j=0;int res[21];
for(i=0;i<21;i++){res[i]=0;}
while((c=getchar())!=EOF){if(c=='.'||c==','){res[0]++;j=0;}
else{if(j==0){if(isalpha(c)){j=1;}else;}else{if(isalpha(c)){j++;}
else {if (j<20){res[j]++;} else {res[20]++;}j=0;}}}}
for(i=0;i<21;i++){printf("%-2d文字：%-4d回\n",i,res[i]);}
return 0;}