n,m=map(int,input().split(' '))
r=range(m);n-=sum(r)
if n%m<1:
for x in r:print(m-x+n//m-1,end=' ')
else:print -1
bixtPW1hcChpbnQsaW5wdXQoKS5zcGxpdCgnICcpKQpyPXJhbmdlKG0pO24tPXN1bShyKQppZiBuJW08MToKIGZvciB4IGluIHI6cHJpbnQobS14K24vL20tMSxlbmQ9JyAnKQplbHNlOnByaW50IC0x