1 #include <stdio.h> 2 main(int argc,char const * argv[])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