C312322331333132212111133133313331323133313221211111211111323331322123212121   >>    C31232233133313221211113313331333132313331322121111121111132333132212321212   <<    C312322331333132212111133133313331323133313221211111211111323331322123212123   >>      C312322331333132212111133133313331323133313221211111211111323331322123212122   >>