C31232233133313221211113313331323133313233313233313231333132313223231211   >>    C3123223313331322121111331333132313331323331323331323133313231322323121   <<    C31232233133313221211113313331323133313233313233313231333132313223231213   >>      C31232233133313221211113313331323133313233313233313231333132313223231212   >>