#include <stdio.h>
#define MAX 500

int main() {
    char text [MAX+1];

    printf("Informe o texto (tamanho maximo %d caracteres:", MAX);
    gets(text);
    text[0] = '*';
    for (int i = 0; i <= MAX; i++) {
        if (text[i] == ' ') {
            text[i + 1] = '*';
        }
    }
    printf("\nO texto final e %s\n", text);
}