#include <iostream>
#include <string>
using namespace std;
int main() {
string a;
int count = 0;
while(cin >> a){
//cout << a.size() << ' ';
for(int i = 0; i < a.size(); i++){
if(int(a[i]) == 33 or int(a[i]) == 63 or int(a[i]) == 46 ){
//cout << i;
if(int(a[i+1]) != int(a[i]) and int(a[i+1]) != 63 and int(a[i+1]) != 33 ) count++;
//cout << a[i+1];
}
}
//cout << count;
}
cout << count;
}
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