C312322331333132212111133133313331323223313223313231333132323321   >>    C31232233133313221211113313331333132322331322331323133313232332   <<    C312322331333132212111133133313331323223313223313231333132323323   >>      C312322331333132212111133133313331323223313223313231333132323322   >>