C2123132222131133131121131211113313231322331333132212111113331333232131211   >>    C212313222213113313112113121111331323132233133313221211111333133323213121   <<    C2123132222131133131121131211113313231322331333132212111113331333232131213   >>      C2123132222131133131121131211113313231322331333132212111113331333232131212   >>