#include <stdio.h>

int fib(int n) {
    int a = 0;
    int b = 1;
    for (int i = 0; i < n; i++) {
        int temp = a + b;
        a = b;
        b = temp;
    }
    return a;
}

int main() {
    for (int i = 0; i < 12; i++) {
        printf("fib(%d) = %d\n", i, fib(i));
    }
    return 0;
}