C3123223313331322121111331333133313231333132212111112113313233221211   >>    C312322331333132212111133133313331323133313221211111211331323322121   <<    C3123223313331322121111331333133313231333132212111112113313233221213   >>      C3123223313331322121111331333133313231333132212111112113313233221212   >>