/*
 * This simple program is created by Roland Hollós (hollorol@rolandhollos.net)
 */
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

#define MAX_LINE_LEN 10000

int 
main()
{
    char s[MAX_LINE_LEN];
    char out[MAX_LINE_LEN];
    while(fgets(s, MAX_LINE_LEN, stdin) != NULL){
        int string_length = strlen(s);
        int k = 0;
        int under = 0;
        for(int i = 0; i < string_length; ++i)
        {
            /* if((s[i] >= 65) && (s[i] <= 90)) */
            if((s[i] == '_') && !under){
                under = 1;
                continue;
            }

            if((s[i] <= 122) && (s[i] >= 90) && under)
            {
                out[k] = s[i] - 32;
                k++;
                under = 0;
                continue;
            }

            out[k] = s[i];
            k++;
            under = 0;
        }
        out[k] = '\0';
        printf("%s", out);
    }
    return 0;
}