int main() {
char myStr[] = "Hello World";
char *myPtr1 = strchr(myStr, 'o');
char *myPtr2 = strrchr(myStr, 'o');
if (myPtr1 != NULL) {
printf("First: %s\n", myPtr1);
}
if (myPtr2 != NULL) {
printf("Last: %s\n", myPtr2);
}
return 0;
}