#include<stdio.h>

int main(){

char data;
while(scanf("%c", &data) != EOF){
    int all = 0;
    if(data>='A' && data<='Z')all++;
    while(data!='\n'){
        scanf("%c", &data);
        if(data>='A' && data<='Z')all++;
    }
    printf("%d\n", all);
}

}