#include <stdio.h>

int main() {
    int z = printf("Plain printf\n");
    int a = fprintf(stdout, "fprintf to stdout\n");
    int b = fprintf(stderr, "fprintf to stderr\n");
    int c = fprintf(stdin, "fprintf to stdin\n");
    printf("%d %d %d %d\n", z,a,b,c);
    return 0;
}