View Compilation Error

0_0_30230426_13088.cpp:6:6: error: missing terminating " character
      ")
      ^
0_0_30230426_13088.cpp:11:14: error: missing terminating ' character
              num+=str[i]-';
              ^
0_0_30230426_13088.cpp: In function 'int main()':
0_0_30230426_13088.cpp:9:11: error: 'i' was not declared in this scope
          ;i<str.length();i++)
           ^
0_0_30230426_13088.cpp:15:16: error: 'num' was not declared in this scope
          cout<<num<<endl;
                ^