View Compilation Error

0_0_36836060_19527.cpp:4:1: error: stray '\243' in program
 int a,b；
 ^
0_0_36836060_19527.cpp:4:1: error: stray '\273' in program
0_0_36836060_19527.cpp:5:1: error: stray '\243' in program
 while（scanf("%d%d",&a,&b)!=EOF)
 ^
0_0_36836060_19527.cpp:5:1: error: stray '\250' in program
0_0_36836060_19527.cpp: In function 'int main()':
0_0_36836060_19527.cpp:5:1: error: expected initializer before 'while'
0_0_36836060_19527.cpp:8:1: error: return-statement with no value, in function returning 'int' [-fpermissive]
 return;
 ^