C1111133313331323223313331333133313233231311211331333133313331313321211   >>    C111113331333132322331333133313331323323131121133133313331333131332121   <<    C1111133313331323223313331333133313233231311211331333133313331313321213   >>      C1111133313331323223313331333133313233231311211331333133313331313321212   >>