C312322331333132212111133133313331323133313221211111231323233231   >>    C31232233133313221211113313331333132313331322121111123132323323   <<    C312322331333132212111133133313331323133313221211111231323233233   >>      C312322331333132212111133133313331323133313221211111231323233232   >>