func_code_string: #include <bits/stdc++.h>   using namespace std;   long long m[10000005], x = 0, n, k, i, j, a;   int main() {     cin >> a >> n;     for (i = 1; i < a + n; i++) {       m[i] = i;     }     for (i = 2; i < 3400; i++) {       k = 0;       for (j = i * i; j <= a + n; j = j + i * i) {         k++;         m[j] = k;       }     }     for (i = a; i < a + n; i++) x = x + m[i];     cout << x;   }   