URI 1101

# coding: utf-8
# URI 1101
# Amanda Luna / UFCG

strn = ""
soma = 0
numeros = []

while True :

    nums = raw_input().split()
    num1,num2 = nums

    if int(num1) == 0 or int(num2) == 0 : break

    if int(num1) < int(num2) :
        for i in range(int(num1),int(num2)+1) :
            soma += i
            numeros.append(i)
    else :
        for i in range(int(num2),int(num1)+1) :
            soma += i
            numeros.append(i)

    for i in range(len(numeros)) :
        strn += str(numeros[i])+" "

    print strn + "Sum="+str(soma)
    soma = 0
    strn = ""
    numeros = []