1#include <stdio.h>
2
3int main(int argc, char const *argv[]) {
4    printf("Hello world.\n");
5    char line[100];
6    int count = 1;
7    while (fgets(line, sizeof(line), stdin)) { // Reading from stdin...
8        fprintf(stderr, "input line=>%d\n", count++);
9        if (count > 3)
10            break;
11    }
12
13    printf("Exiting now\n");
14}
15