C31232233133313221211113313331333132313331323331333133313111123313331333231221   >>    C3123223313331322121111331333133313231333132333133313331311112331333133323122   <<    C31232233133313221211113313331333132313331323331333133313111123313331333231223   >>      C31232233133313221211113313331333132313331323331333133313111123313331333231222   >>