C1111133313331323223313331333133313231323112113313311232313121121   >>    C111113331333132322331333133313331323132311211331331123231312112   <<    C1111133313331323223313331333133313231323112113313311232313121123   >>      C1111133313331323223313331333133313231323112113313311232313121122   >>