C312322331333132212111133133313331323223313223313231333131311311   >>    C31232233133313221211113313331333132322331322331323133313131131   <<    C312322331333132212111133133313331323223313223313231333131311313   >>      C312322331333132212111133133313331323223313223313231333131311312   >>