C2123132222131133131121131211113313231322331333132233131133133313311232323311   >>    C212313222213113313112113121111331323132233133313223313113313331331123232331   <<    C2123132222131133131121131211113313231322331333132233131133133313311232323313   >>      C2123132222131133131121131211113313231322331333132233131133133313311232323312   >>