C2123132222131133131121131211113313331333131133133322332322111322233221   >>    C212313222213113313112113121111331333133313113313332233232211132223322   <<    C2123132222131133131121131211113313331333131133133322332322111322233223   >>      C2123132222131133131121131211113313331333131133133322332322111322233222   >>