#include <stdio.h>

void main(void){
    int n = 0 , k = 0 ;
    scanf("%d %d",&n,&k);
    if(n%k == 0){
        int oneCount = n / k;
        for(int i = 0 ; i < oneCount ; i++ ){
            printf("1 ");
        }
        for(int i = 0 ; i < n-oneCount ; i++){
            printf("%d ",i+2);
        }
    }else{
        printf("-1");
    }
}