C13131221323331323131323132323213231323131323223313233313221121131   >>    C1313122132333132313132313232321323132313132322331323331322112113   <<    C13131221323331323131323132323213231323131323223313233313221121133   >>      C13131221323331323131323132323213231323131323223313233313221121132   >>