View Compilation Error

0_0_39486344_2154.cpp: In function 'void solve()':
0_0_39486344_2154.cpp:5:9: error: 'll' was not declared in this scope
    5 |         ll a, b; cin >> a >> b;
      |         ^~
0_0_39486344_2154.cpp:5:25: error: 'a' was not declared in this scope
    5 |         ll a, b; cin >> a >> b;
      |                         ^
0_0_39486344_2154.cpp:5:30: error: 'b' was not declared in this scope
    5 |         ll a, b; cin >> a >> b;
      |                              ^