#include <stdio.h>
#include <cs50.h>
#include <string.h>


int main(void)
{
    

    string s = GetString();
    int l = strlen(s);
    
    int char1 = s[0];
    int char2;
    for (int i = 0; i < l; i++)
    {
        if (s[i] == ' ')
            {
                char2 = s[i+1];
                printf("%c%c\n", char1 - 32, char2 - 32);
    }
    
            }

    
}