View Compilation Error

0_0_30688089_2125.cpp:7:5: error: missing terminating " character
     printf("%d\n, a + b);
     ^
0_0_30688089_2125.cpp: In function 'int main()':
0_0_30688089_2125.cpp:8:5: error: expected primary-expression before 'return'
     return 0;
     ^