C312322331333132212111133133313331323133313221211113313233313111   >>    C31232233133313221211113313331333132313331322121111331323331311   <<    C312322331333132212111133133313331323133313221211113313233313113   >>      C312322331333132212111133133313331323133313221211113313233313112   >>