C1111133313331323223313331333133313233231311211331333132311112113121   >>    C111113331333132322331333133313331323323131121133133313231111211312   <<    C1111133313331323223313331333133313233231311211331333132311112113123   >>      C1111133313331323223313331333133313233231311211331333132311112113122   >>