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