C11111333133313232233133313331333133112323131121211113313132313113121   >>    C1111133313331323223313331333133313311232313112121111331313231311312   <<    C11111333133313232233133313331333133112323131121211113313132313113123   >>      C11111333133313232233133313331333133112323131121211113313132313113122   >>