View Compilation Error

0_0_38982896_16838.cpp: In function 'int main()':
0_0_38982896_16838.cpp:6:28: error: expected ';' before 'while'
    6 |         scanf("%d%d",&a,&b)
      |                            ^
      |                            ;
    7 |         while (a && b) {
      |         ~~~~~