C111123313121111121111331323133313331333132322121111133313112231333112121   >>    C11112331312111112111133132313331333133313232212111113331311223133311212   <<    C111123313121111121111331323133313331333132322121111133313112231333112123   >>      C111123313121111121111331323133313331333132322121111133313112231333112122   >>