#include <stdio.h>
#include <string.h>
int main(){
	int test;
	int length,min,max;
	char biner[10005];
	int flag;
	int sign;

	FILE *a;
	a = fopen("testdata.in","r");
	fscanf(a,"%d",&test);
	for (int i = 0 ; i <test;i++){
		flag = 0;
		sign = 0;
		fscanf(a,"%d %d %d",&length,&min,&max);
		fscanf(a,"%[^\n]",biner);
		for (int j = 0 ; j<length;j++){
			if(biner[j]=='1'){
				flag++;
				if(flag<min &&  (biner[j+1]=='0' || biner[j+1]=='\0')){
					flag = 0;
				}
				if(flag>max){
					flag = 0;
				}
				if(flag>=min && flag<=max){
					if(biner[j+1]=='0'){

					sign++;
					flag = 0;
					}
					if(biner[j+1]=='\0'){
						sign++;
					}
				}
			}
		}
		printf("Case #%d: %d\n",i+1,sign);
	}
	fclose(a);
	return 0;
}