View Compilation Error

0_0_29061870_4494.cpp: In function 'int main()':
0_0_29061870_4494.cpp:5:10: error: expected unqualified-id before ';' token
  int a,b,;
          ^
0_0_29061870_4494.cpp:6:21: error: expected ';' before '{' token
  scanf("%d%d",&a,&b){
                     ^