Adding Digits

260A1400· specialist2s256 MB⌨ stdin/stdout

#implementation #math

Examples

Sample 1of 3

Input

5 4 5

Output

Sample 2of 3

Input

12 11 1

Output

Sample 3of 3

Input

260 150 10

Output

-1

260A.cpp

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Ln 11·137 BGNU C++20 (64)