#include<stdio.h>
#include<string.h>
int main()
{

	int total,min,max,nilai,count,kasus;


	FILE *fp=fopen("random.txt","r");

	fscanf(fp,"%d\n",&kasus);
	for(int x=0;x<kasus;x++)
	{
		fscanf(fp,"%d %d %d\n",&total,&min,&max);
		char string[total];
		count=0;
		nilai=1;
		fscanf(fp,"%s\n",string);
			for(int j=0;j<strlen(string);j++)
		{

			if(string[j]=='1'&&string[j+1]=='1')
			{
				nilai++;

					if(nilai>max)
					{
						nilai=1;

					}
					else if(nilai>=min && nilai<=max)
					{
						if(string[j+1]=='1'&&string[j+2]=='0')
						{
							count++;
							nilai=1;
						}
						else if(string[j+1]=='1'&&string[j+2]=='\0')
						{
							count++;
							nilai=1;
						}

					}

			}
			else if(string[j]=='1'&&string[j+1]=='0')
			{
				if(nilai>max)
					{
						nilai=1;

					}
					else if(nilai>=min && nilai<=max)
					{
						if(string[j+1]=='0' && string[j-1]=='\0')
						{
							count++;
							nilai=1;
						}
						else if(string[j+1]=='0' && string[j-1]=='0')
						{
							count++;
							nilai=1;
						}


					}

			}
			else if(string[j]=='1' && string[j+1]=='\0')
			{
				if(nilai>max)
					{
						nilai=1;

					}
					else if(nilai>=min && nilai<=max)
					{

							count++;
							nilai=1;


					}
			}
			else
			nilai=1;


		}
			printf("Case #%d: %d\n",x+1,count);


	}
}