C2123132222131133131121131211113313231322331333132233133322332311   >>    C212313222213113313112113121111331323132233133313223313332233231   <<    C2123132222131133131121131211113313231322331333132233133322332313   >>      C2123132222131133131121131211113313231322331333132233133322332312   >>