View Compilation Error

0_0_34652883_24620.cpp:7:2: error: stray '\243' in program
  cin>>s>>t；
  ^
0_0_34652883_24620.cpp:7:2: error: stray '\273' in program
0_0_34652883_24620.cpp: In function 'int main()':
0_0_34652883_24620.cpp:8:2: error: expected ';' before 'for'
  for(i=s;i<=t;i++)
  ^
0_0_34652883_24620.cpp:8:18: error: expected ';' before ')' token
  for(i=s;i<=t;i++)
                  ^
0_0_34652883_24620.cpp:23:1: error: expected '}' at end of input
 }
 ^