C3123223313331322121111331333133313231333132212111112113313231123311211   >>    C312322331333132212111133133313331323133313221211111211331323112331121   <<    C3123223313331322121111331333133313231333132212111112113313231123311213   >>      C3123223313331322121111331333133313231333132212111112113313231123311212   >>