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c_cpp
2 years ago
184 B
5
Indexable
#include <iostream>
int main() {
	long long a, b;
	std::cin >> a >> b;
	if (b > (a + a % 2) / 2) {
		std::cout << (b - ((a + a % 2)/ 2)) * 2;
	}else std::cout << b  * 2  - 1;
}	
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