View Compilation Error

0_0_36949183_7262.cpp: In function 'int main()':
0_0_36949183_7262.cpp:6:2: error: 'll' was not declared in this scope
  ll n;
  ^
0_0_36949183_7262.cpp:7:23: error: 'n' was not declared in this scope
  while(scanf("%lld", &n) != EOF){
                       ^
0_0_36949183_7262.cpp:8:6: error: expected ';' before 'flag'
   ll flag = 0;
      ^
0_0_36949183_7262.cpp:9:6: error: expected ';' before 'ans'
   ll ans = 1;
      ^
0_0_36949183_7262.cpp:10:9: error: 'ans' was not declared in this scope
   while(ans < n){
         ^
0_0_36949183_7262.cpp:11:7: error: 'flag' was not declared in this scope
    if(flag & 1) ans *= 2;
       ^
0_0_36949183_7262.cpp:13:4: error: 'flag' was not declared in this scope
    flag ++;
    ^
0_0_36949183_7262.cpp:15:6: error: 'flag' was not declared in this scope
   if(flag & 1) puts("Stan wins.");
      ^