C312322331333132212111133133313331323133313221211111211111231323111   >>    C31232233133313221211113313331333132313331322121111121111123132311   <<    C312322331333132212111133133313331323133313221211111211111231323113   >>      C312322331333132212111133133313331323133313221211111211111231323112   >>