View Compilation Error

0_0_19041694_1274.cpp:5:1: error: stray '\243' in program
 while(scanf("%d%d",&a,&b)！=EOF)
 ^
0_0_19041694_1274.cpp:5:1: error: stray '\241' in program
0_0_19041694_1274.cpp:9:1: error: stray '\243' in program
 return 0；
 ^
0_0_19041694_1274.cpp:9:1: error: stray '\273' in program
0_0_19041694_1274.cpp: In function 'int main()':
0_0_19041694_1274.cpp:5:28: error: lvalue required as left operand of assignment
 while(scanf("%d%d",&a,&b)！=EOF)
                            ^
0_0_19041694_1274.cpp:10:1: error: expected ';' before '}' token
 }
 ^