C13131221323331323131323132323213231323131323223313233313231133132313232211321   >>    C1313122132333132313132313232321323132313132322331323331323113313231323221132   <<    C13131221323331323131323132323213231323131323223313233313231133132313232211323   >>      C13131221323331323131323132323213231323131323223313233313231133132313232211322   >>