C111123313121111121111331333133313331322121111331333133313231333132322233221   >>    C11112331312111112111133133313331333132212111133133313331323133313232223322   <<    C111123313121111121111331333133313331322121111331333133313231333132322233223   >>      C111123313121111121111331333133313331322121111331333133313231333132322233222   >>