View Compilation Error

0_0_25615072_2989.cpp:6:1: error: missing terminating " character
 while((scanf("%d,&n)!=-1))
 ^
0_0_25615072_2989.cpp: In function 'int main()':
0_0_25615072_2989.cpp:8:6: error: expected '}' before ';' token
 sum=0;
      ^
0_0_25615072_2989.cpp:8:6: error: expected ')' before ';' token
0_0_25615072_2989.cpp:8:6: error: expected ')' before ';' token
0_0_25615072_2989.cpp:8:6: error: expected ')' before ';' token
0_0_25615072_2989.cpp: At global scope:
0_0_25615072_2989.cpp:13:1: error: expected declaration before '}' token
 }
 ^