View Compilation Error

0_0_36985358_19086.cpp:13:2: error: stray '\243' in program
  int i，tag;
  ^
0_0_36985358_19086.cpp:13:2: error: stray '\254' in program
0_0_36985358_19086.cpp: In function 'int main()':
0_0_36985358_19086.cpp:13:9: error: expected initializer before 'tag'
  int i，tag;
         ^
0_0_36985358_19086.cpp:14:6: error: 'i' was not declared in this scope
  for(i=1;i<a.length();i++)
      ^
0_0_36985358_19086.cpp:19:25: error: 'tag' was not declared in this scope
                         tag=i;
                         ^
0_0_36985358_19086.cpp:22:6: error: 'i' was not declared in this scope
  for(i=tag;i<a.length();i++)
      ^
0_0_36985358_19086.cpp:22:8: error: 'tag' was not declared in this scope
  for(i=tag;i<a.length();i++)
        ^