freopen没有用啊
#include
#include
#include
using namespace std;
int main() {
freopen("capitalization.in","r",stdin);
freopen("capitalization.out", "w", stdout);
string a;
getline(cin, a);
for (int i = 0; i < a.size(); i++) {
if (a[i] < 'z' && a[i]>'a')
a[i] = a[i] - 'a' + 'A';
}
cout << a << endl;
return 0;
}