Recursion depth = 0 local1 = 0, local2 = 0 Recursion depth = 1 local1 = 3, local2 = 7 Recursion depth = 2 local1 = 6, local2 = 14 Recursion depth = 3 local1 = 9, local2 = 21 Recursion depth = 4 local1 = 12, local2 = 28 Recursion depth = 5 local1 = 15, local2 = 35 Recursion depth = 6 local1 = 18, local2 = 42 Recursion depth = 7 local1 = 21, local2 = 49 Recursion depth = 8 local1 = 24, local2 = 56 *** Base Case depth = 9 Return from depth = 8 local1 = 24, local2 = 56 Return from depth = 7 local1 = 21, local2 = 49 Return from depth = 6 local1 = 18, local2 = 42 Return from depth = 5 local1 = 15, local2 = 35 Return from depth = 4 local1 = 12, local2 = 28 Return from depth = 3 local1 = 9, local2 = 21 Return from depth = 2 local1 = 6, local2 = 14 Return from depth = 1 local1 = 3, local2 = 7 Return from depth = 0 local1 = 0, local2 = 0