def print_sorted_alpha_and_sum(s):
    # Separate alphabets and digits
    alphabets = []
    digits_sum = 0
    for char in s:
        if char.isalpha():
            alphabets.append(char)
        elif char.isdigit():
            digits_sum += int(char)
 
    # Sort alphabets
    alphabets.sort()
 
    # Print sorted alphabets followed by sum of digits
    print(''.join(alphabets) + str(digits_sum))
 
# Example usage:
s = input()
print_sorted_alpha_and_sum(s)

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