#include <iostream>
#include <string>
using namespace std;
int main() {
string s;
while (cin >> s) {
long long x = 0;
for (int i = 0;; ++i) {
if (s[i] == '.') {
if (s[i+1] >= '5') x++;
cout << x << endl;
break;
}
x = x*10 + (s[i]-'0');
}
}
return 0;
}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).