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- #include <iostream>
- int main()
- {
- int abc = 10;
- int _abc = 20;
- int _123abc = 30;
-
-
- int aaa = 100;
- std::cout << aaa << std::endl;
-
- int num1 = 10;
- int num2 = 20;
- int sum = num1 + num2;
- std::cout << sum << std::endl;
- system("pause");
- return 0;
- }
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