View Compilation Error

0_0_26121368_25283.cpp:12:5: error: stray '\243' in program
     while(r) a=b,b=r,r=a%b；
     ^
0_0_26121368_25283.cpp:12:5: error: stray '\273' in program
0_0_26121368_25283.cpp: In function 'int gcd(int, int)':
0_0_26121368_25283.cpp:13:5: error: expected ';' before 'return'
     return b;
     ^