View Compilation Error

2_28141_2112234_4084.cpp:5:3: error: stray '\243' in program
   int a,b,k=1；
   ^
2_28141_2112234_4084.cpp:5:3: error: stray '\273' in program
2_28141_2112234_4084.cpp: In function 'int main()':
2_28141_2112234_4084.cpp:6:3: error: expected ',' or ';' before 'while'
   while(cin>>a)
   ^