C111123313121111121111331323133313331333132322121111133313231333133313321   >>    C11112331312111112111133132313331333133313232212111113331323133313331332   <<    C111123313121111121111331323133313331333132322121111133313231333133313323   >>      C111123313121111121111331323133313331333132322121111133313231333133313322   >>