C1111233133313231133133313331333131211111331121111331322331311311312331   >>    C111123313331323113313331333133313121111133112111133132233131131131233   <<    C1111233133313231133133313331333131211111331121111331322331311311312333   >>      C1111233133313231133133313331333131211111331121111331322331311311312332   >>