C31232233133313221211113313331333131211113313231333132213232223232321   >>    C3123223313331322121111331333133313121111331323133313221323222323232   <<    C31232233133313221211113313331333131211113313231333132213232223232323   >>      C31232233133313221211113313331333131211113313231333132213232223232322   >>