long long n, k; cin >> n >> k;
// For Odd Part if(k <= (n + 1) / 2){ cout << k * 2 - 1; } // For Even Part else{ cout << (k - (n + 1) / 2) * 2; }
long long n, k; cin >> n >> k;
// For Odd Part if(k <= (n + 1) / 2){ cout << k * 2 - 1; } // For Even Part else{ cout << (k - (n + 1) / 2) * 2; }
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