#include <stdio.h>
#include <string.h>

int main(){
    char *str = "…";
    char buf[1000] = {'\0'};
    int i, len1, len2, cnt = 0, max = 0, flag = 0;

    scanf("%s", buf);
    len1 = strlen(str);
    len2 = strlen(buf);

    for(i = 0; i <= len2 - len1; i++){
        if(strncmp(str, &buf[i], len1) == 0){
            cnt++;
            i += len1 - 1;
            flag = 1;
        }else{
            if(flag == 1){
                if(max <= cnt){
                    max = cnt;
                }
                cnt = 0;
                flag = 0;
            }
        }
    }
    if(cnt >= max){
        max = cnt;
    }

    printf("%d\n", max);

    return 0;
}