C111123313121111121111331323133313331333132322133313231333131123313331313323321   >>    C11112331312111112111133132313331333133313232213331323133313112331333131332332   <<    C111123313121111121111331323133313331333132322133313231333131123313331313323323   >>      C111123313121111121111331323133313331333132322133313231333131123313331313323322   >>