Let's do it: [0, 0, 1, 1, 0, 1, 0] 010 phase done: [0, 0, 1, 1, 0, 1, 0] tmpstr 110 (-110) Now: [0, 0, 1, 1, 0] tmpstr 110 (-110) Now: [0, 0, 1] Finishing up: [0, 0, 1] QAQ