C13131221323331323131323132323213231323131323223313233313232233131112131   >>    C1313122132333132313132313232321323132313132322331323331323223313111213   <<    C13131221323331323131323132323213231323131323223313233313232233131112133   >>      C13131221323331323131323132323213231323131323223313233313232233131112132   >>