Workflow
forall i,j O(i,j) -> A += (i,j)
forall i,j A(i,j) -> RB += (i,j)
forall i,j RB(i,j) -> C += (i,j)
forall i,j C(i,j) -> D += (i,j)
forall i,j D(i,j) -> E += (i,j)
forall i,j E(i,j) -> F += (i,j)
forall i,j F(i,j) -> G += (i,j)
forall i,j G(i,j) -> H += (i,j)
forall i,j H(i,j) -> HI += (i,j)
forall i,j HI(i,j) -> J += (i,j)
Target
J(x,y)