C2123132222131133131121131211113313231322331333132233131133133313311   >>    C212313222213113313112113121111331323132233133313223313113313331331   <<    C2123132222131133131121131211113313231322331333132233131133133313313   >>      C2123132222131133131121131211113313231322331333132233131133133313312   >>