blah

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

void doit() {
    printf("Hello World\n");
}

int goAgain() {
    char ch;

    printf("Again? (Y/N): ");
    scanf(" %c", &ch);
    return (ch=='Y' || ch=='y');
}

int main() {
    for(;;)/> { /* infinite loop */
        doit();
        if (!goAgain()) { break; }
    }
    return 0;
}