A11632. Permutation Cycle

For a permutation $P[1...\ N]$ of integers from $1$ to $N$ , function $f$ is defined as follows:

Let $g(i)$ be the minimum positive integer $j$ such that $f(i,j)=i$ . We can show such $j$ always exists.

For given $N,A,B$ , find a permutation $P$ of integers from $1$ to $N$ such that for $1<=i<=N$ , $g(i)$ equals either $A$ or $B$ .

The only line contains three integers $N,A,B$ ( $1<=N<=10^{6},1<=A,B<=N$ ).

If no such permutation exists, output -1. Otherwise, output a permutation of integers from $1$ to $N$ .

In the first example, $g(1)=g(6)=g(7)=g(9)=2$ and $g(2)=g(3)=g(4)=g(5)=g(8)=5$

In the second example, $g(1)=g(2)=g(3)=1$