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    # Enter your code here. Read input from STDIN. Print output to STDOUT
    s = input()
    upper = []
    lower = []
    even = []
    odd = []
    for i in sorted(s):
    if i.isupper():
            upper.append(i)
        elif i.islower():
            lower.append(i)
        else:
            if int(i)%2==0:
                even.append(i)
            else:
                odd.append(i)
    string1 = lower + upper
    string2 = odd + even
    string3 = string1 + string2
    print("".join(string3))