D233313133313221323132333131313231322331323331323323133313221211   >>    D23331313331322132313233313131323132233132333132332313331322121   <<    D233313133313221323132333131313231322331323331323323133313221213   >>      D233313133313221323132333131313231322331323331323323133313221212   >>