View Compilation Error

0_0_34457129_5512.cpp: In function 'int main()':
0_0_34457129_5512.cpp:8:6: error: expected '(' before '{' token
 while{(scanf("%d%d",&a,&b)!=EOF)
      ^
0_0_34457129_5512.cpp:8:6: error: expected primary-expression before '{' token
0_0_34457129_5512.cpp:8:6: error: expected ')' before '{' token
0_0_34457129_5512.cpp:9:1: error: expected ';' before 's'
 s=a+b;
 ^