C2123132222131133131121131211113313231322331333132233132333112323233231   >>    C212313222213113313112113121111331323132233133313223313233311232323323   <<    C2123132222131133131121131211113313231322331333132233132333112323233233   >>      C2123132222131133131121131211113313231322331333132233132333112323233232   >>