#include <stdio.h>
#include <stdlib.h>



int main()
{
    FILE *f, *g;
    f=fopen("text.in", "r");
    g=fopen("text.out", "w");

    char c, s[13]="\n;:-_.,/!? ", s2[4]="\n ";
    int sum=0, nc=0;
    while(fscanf(f, "%c", &c)==1)
    {
        if(!strchr(s, c))
            sum++;
        if(strchr(s2, c))
            nc++;
    }
    fprintf(g, "%i", sum/nc);
    return 0;
}