#include<bits/stdc++.h>
using namespace std;
char str[105];
int main()
{
int test,x,scarecrow,i,N;
scanf("%d",&test);
for(x=1;x<=test;x++)
{
scanf("%d",&N);
getchar();
for(i=0;i<N;i++)
{
scanf("%c",&str[i]);
}
scarecrow=0;
for(i=0;i<N;i++)
{
if(str[i]=='.')
{
i+=2;
scarecrow++;
}
}
printf("Case %d: %d\n",x,scarecrow);
}
return 0;
}
using namespace std;
char str[105];
int main()
{
int test,x,scarecrow,i,N;
scanf("%d",&test);
for(x=1;x<=test;x++)
{
scanf("%d",&N);
getchar();
for(i=0;i<N;i++)
{
scanf("%c",&str[i]);
}
scarecrow=0;
for(i=0;i<N;i++)
{
if(str[i]=='.')
{
i+=2;
scarecrow++;
}
}
printf("Case %d: %d\n",x,scarecrow);
}
return 0;
}
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