View Compilation Error

0_0_36636351_29994.cpp:7:2: error: missing terminating " character
  scanf("%d, &t);
  ^
0_0_36636351_29994.cpp:11:3: error: missing terminating " character
   scanf("%d %d, &n, &a);
   ^
0_0_36636351_29994.cpp: In function 'int main()':
0_0_36636351_29994.cpp:8:2: error: expected primary-expression before 'while'
  while(t--)
  ^