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10/14/2023 7:34 PM
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#include <iostream>
using namespace std;
int main()
{
int long long a, b;
cin >> a;
b = a / 10;
a = 100 * b * (b + 1) + 25;
cout << a;
}Editor is loading...
#include <iostream>
using namespace std;
int main()
{
int long long a, b;
cin >> a;
b = a / 10;
a = 100 * b * (b + 1) + 25;
cout << a;
}