import std;
import time;


fn fib(n: int): int {
    if n < 2 {
        return n;
    }
    return fib(n - 2) + fib(n - 1);
}


print("Computing the value of fib(37)");
var x = time.clock();
print(fib(37));
print(time.clock() - x);
print("Done!");