C312322331333132212111133133313331323133313233313133313231323312121   >>    C31232233133313221211113313331333132313331323331313331323132331212   <<    C312322331333132212111133133313331323133313233313133313231323312123   >>      C312322331333132212111133133313331323133313233313133313231323312122   >>