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

int main() {
    int idade = 0;
    char nome[20];

    printf("Hello! How old are you? ");
    scanf("%d", &idade);
    while (idade == 0) {
        printf("\nAge cannot be 0 nor be decimal. Re-enter your age: ");
        scanf("%d", &idade);
    }
    printf("And what's your name? (write up to 20 characters, only 1st name) ");
    scanf("% [^\n]s", nome);
    printf("\nHello %s, aged %d!\n", nome, idade);

    return 0;
}