C31232233133313221211113313331333133313112223313231333132233112313221   >>    C3123223313331322121111331333133313331311222331323133313223311231322   <<    C31232233133313221211113313331333133313112223313231333132233112313223   >>      C31232233133313221211113313331333133313112223313231333132233112313222   >>