n,d,k=gets.split.map{|e| e.to_i}
x=[]
sum=0
k.times{|i|
	x<<i+1
	sum+=(i+1)
}


if d<sum || n<k
	puts -1
elsif d==sum
	puts x*" "
else
	k.times{|i|
		p1=k-i-1
		while true
			if sum==d
				break
			end
			if p1==k-1
				if x[p1]==n
					break
				end
			else
				if x[p1]+1==x[p1+1]
					break
				end
			end
			sum+=1
			x[p1]+=1
			if sum==d
				break
			end
		end
		break if sum==d
	}
	if sum==d
		puts x*" "
	else
		puts -1
	end
end