C112122131333131323132313221323132313331323131123313233313231313223111   >>    C11212213133313132313231322132313231333132313112331323331323131322311   <<    C112122131333131323132313221323132313331323131123313233313231313223113   >>      C112122131333131323132313221323132313331323131123313233313231313223112   >>