C1111233133313231133133313231333133313331323311121111331311312321   >>    C111123313331323113313331323133313331333132331112111133131131232   <<    C1111233133313231133133313231333133313331323311121111331311312323   >>      C1111233133313231133133313231333133313331323311121111331311312322   >>