// Arup Guha
// 3/13/2024
// Recursive Trace for COP 3502H Exam 2 Question 1

#include <stdio.h>

void f(int a, int b) {
    if (b == 0) return;
    printf("%d ", a);
    f(2*a, b-1);
}

int main() {
    f(3,6);
    return 0;
}