C31232233133313221211113313331333132313331322121133133313231332321   >>    C3123223313331322121111331333133313231333132212113313331323133232   <<    C31232233133313221211113313331333132313331322121133133313231332323   >>      C31232233133313221211113313331333132313331322121133133313231332322   >>