View Compilation Error

0_0_22931517_15163.cpp: In function 'int main()':
0_0_22931517_15163.cpp:62:15: error: expected initializer before '-=' token
       int sss -= a[k]+a[i]+a[j];
               ^
0_0_22931517_15163.cpp:65:12: error: 'sss' was not declared in this scope
      while(sss>1024)
            ^
0_0_22931517_15163.cpp:67:22: error: 'sss' was not declared in this scope
        sum = max(sum,sss);
                      ^