C3132121111331312113313331333133313331333132313331333133313331333132332321221   >>    C313212111133131211331333133313331333133313231333133313331333133313233232122   <<    C3132121111331312113313331333133313331333132313331333133313331333132332321223   >>      C3132121111331312113313331333133313331333132313331333133313331333132332321222   >>