C31232233133313221211113313331333132313232233133313331211111333211232211   >>    C3123223313331322121111331333133313231323223313331333121111133321123221   <<    C31232233133313221211113313331333132313232233133313331211111333211232213   >>      C31232233133313221211113313331333132313232233133313331211111333211232212   >>