C1111233131211111211113313331323133313231333133313221333131122333131   >>    C111123313121111121111331333132313331323133313331322133313112233313   <<    C1111233131211111211113313331323133313231333133313221333131122333133   >>      C1111233131211111211113313331323133313231333133313221333131122333132   >>