View Compilation Error

0_0_36454302_19861.cpp:2:1: error: stray '\243' in program
 using namespace std ；
 ^
0_0_36454302_19861.cpp:2:1: error: stray '\273' in program
0_0_36454302_19861.cpp:3:1: error: expected ';' before 'int'
 int gcd(int m,int n){ 
 ^
0_0_36454302_19861.cpp: In function 'int main()':
0_0_36454302_19861.cpp:33:1: error: expected '}' at end of input
 } 
 ^