( left value + right value ) = target then print the left value and right value Delete the last value of left and right list and make the left execution to right side and right side execution to left side
else : NEW_LINE INDENT print ( LeftNode . data , RightNode . data ) NEW_LINE del RightList [ - 1 ] NEW_LINE del LeftList [ - 1 ] NEW_LINE curr_left = LeftNode . right NEW_LINE curr_right = RightNode . left NEW_LINE DEDENT