C112122131333131323132313221323132313331323131123313232213232331   >>    C11212213133313132313231322132313231333132313112331323221323233   <<    C112122131333131323132313221323132313331323131123313232213232333   >>      C112122131333131323132313221323132313331323131123313232213232332   >>