function solve()
    n, k = readline() |> split |> x->parse.(Int, x)
    a = String[]
    for _ in 1:n
        s = readline()
        push!(a, s)
    end
    for i in 1:n
        for _ in 1:k
            li = a[i]
            for j in 1:n
                for _ in 1:k
                    print(li[j])
                end
            end
            println()
        end
    end
end
solve()