arq = open("in.txt", 'r')

arqSaida = open("out.txt", 'w+')

linhas = arq.readlines()



for linha in linhas:
    y = ''
    x = linha.split()

    for i in range(len(x)):
        x[i] = int(x[i])

    x.sort()

    for i in range(len(x)):
        y = y + str(x[i])
        if i < len(x)-1:
            y = y + ' '
    print(y)
    arqSaida.write(y + '\n')

arq.close()
arqSaida.close()