View Compilation Error

0_0_20255698_13875.cpp:5:2: error: stray '\243' in program
  while(scanf("%d %d",&a,&b)！=EOF)
  ^
0_0_20255698_13875.cpp:5:2: error: stray '\241' in program
0_0_20255698_13875.cpp: In function 'int main()':
0_0_20255698_13875.cpp:5:30: error: lvalue required as left operand of assignment
  while(scanf("%d %d",&a,&b)！=EOF)
                              ^