Untitled

#include <iostream>
#include <string.h>
using namespace std;

string a_bc(string& a, string& b, string& c, string &d) {
    if (a.size()) {
        if ((a[0] >= 97) && (a[0] <= 122)) {
            a[0] -= 32;
        }
    }
    if (b.size()) {
        if ((b[0] >= 97) && (b[0] <= 122)) {
            b[0] -= 32;
        }
    }
    if (c.size()) {
        if ((c[0] >= 97) && (c[0] <= 122)) {
            c[0] -= 32;
        }
    }
    d += a;
    d += ' ';
    d += b[0];
    d += ". ";
    d += c[0];
    d += '.';
    return d;
}
int main(){

    string a, b, c, d;
    cin >> a >> b >> c;
    d = "";
    cout << a_bc(a, b, c, d);
    return 0;
}