#include <stdio.h>
#include <stdlib.h>


int main() {
    int x = 1;
    
    while(x < 5) {
        printf("%d ", x);
        x++;
    }
    
    printf("\n");
    x = 1;
    do {
        printf("%d ", x);
        x++;
    } while(x < 5);
    
    return 0;
}