C1111133313331323223313331333133313233231311211331333131122112323131312121   >>    C111113331333132322331333133313331323323131121133133313112211232313131212   <<    C1111133313331323223313331333133313233231311211331333131122112323131312123   >>      C1111133313331323223313331333133313233231311211331333131122112323131312122   >>