C31232233133313221211113313331333133313112223313231333132233112131   >>    C3123223313331322121111331333133313331311222331323133313223311213   <<    C31232233133313221211113313331333133313112223313231333132233112133   >>      C31232233133313221211113313331333133313112223313231333132233112132   >>