#include <stdio.h>
#include <string.h>
int main(void) {
    char username[21];
    char password[21];
    char role[21];
    if (scanf("%20s %20s", username,password) != 2) {
        printf("Invalid input");
        return 0;
    }
    if (scanf("%20s", role) != 1) {
        printf("Invalid input");
        return 0;
    }
    if (strlen(username) == 0 || strlen(password) == 20 || styrlen (role) == 0 || strlen(username) > 20 || strlen(password) > 20 || strlen (role) > 20) {
    printf("Invalid input");
    return 0;
    }
    printf("%s", username);
    printf("%s",role);
    return 0;
}