C312322331333132212111133133313331323133313221211111231211111333132321323112121   >>    C31232233133313221211113313331333132313331322121111123121111133313232132311212   <<    C312322331333132212111133133313331323133313221211111231211111333132321323112123   >>      C312322331333132212111133133313331323133313221211111231211111333132321323112122   >>