C112122131333131323132313221323132313331323131123313233313231311331323223321   >>    C11212213133313132313231322132313231333132313112331323331323131133132322332   <<    C112122131333131323132313221323132313331323131123313233313231311331323223323   >>      C112122131333131323132313221323132313331323131123313233313231311331323223322   >>