C112122131333131323132313221323132313331323131123313233313221231   >>    C11212213133313132313231322132313231333132313112331323331322123   <<    C112122131333131323132313221323132313331323131123313233313221233   >>      C112122131333131323132313221323132313331323131123313233313221232   >>