View Compilation Error

0_0_34770274_7148.cpp: In function 'int main()':
0_0_34770274_7148.cpp:41:19: error: expected ')' before ';' token
    while(cin>>a>>b;) 
                   ^
0_0_34770274_7148.cpp:41:20: error: expected primary-expression before ')' token
    while(cin>>a>>b;) 
                    ^