func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long t;     cin >> t;     while (t--) {       long long a, b;       cin >> a >> b;       long long xx = fabs(a - b);       long long d = xx / 2;       if ((a + b) % 2) {         long long yy = a + b - 2 * d + 1;         cout << yy <<   n ;         for (long long i = d; i <= a + b - d; i++) {           cout << i <<    ;         }         cout <<   n ;       } else {         long long yy = (a + b - 2 * d) / 2 + 1;         cout << yy <<   n ;         for (long long i = d; i <= a + b - d; i += 2) {           cout << i <<    ;         }         cout <<   n ;       }     }     return 0;   }   