Vector ordering

I'm learning about vectors and matrices, and I haven't been able to solve a question in the right way for quite some time.

The statement says: given some vector, order it in sequential(numerical) form.

Example:

Entrada:{1,2,2,3,3,4}

Saída:{1,2,3,4,2,3}

I made a code that should take any vector given by the user, sort it in ascending form and then re-sort in numerical sequential form. However, the problem is that my code always errors in the first sequence, leaving the higher number at the end of the vector and not in its due place (at the end of the first sequence).

Examples:

Entrada:{1,2,2,3,3,4}

Saída:{1,2,3,2,3,**4**}

Entrada:{1,2,5,2,5,3,3,4}

Saída:{1,2,3,2,3,4,5,**5**}

vetor = {}
tamanho = #vetor
function CriarVetor ()
    print("Insira o tamanho do vetor")
    tamanho = io.read("*number")
    print("Insira os valores do vetor(ordenados ou nao)")
    for i=1,tamanho do
        vetor[i] = io.read("*number")
    end
end
function Ordenar ()
    for j=1,tamanho-1 do
        for k=j+1, tamanho do
            if vetor[j] > vetor[k] then
                vetor[j],vetor[k] = vetor[k],vetor[j]
            end
        end
    end
end
function ReOrdenar ()
    for j=1,tamanho-1 do
        if vetor[j] < vetor[j+1] and vetor[j] == vetor[j-1] then
            vetor[j],vetor[j+1] = vetor[j+1],vetor[j]
        end
    end
end
CriarVetor()
Ordenar()
ReOrdenar()
for b=1, tamanho do
    print("A posicao "..b.." do vetor vale: "..vetor[b])
end