#include<cstdio>
#define syy myson
using namespace std;
int n,k,a[100010],minn,maxx,ok,i;
int check(int x)
{
	int num=0,sum=0;
	for(int ii=1;ii<=n;ii++)
	{
		sum+=a[ii];
		if(sum<0)sum=0;
		if(sum>=x)
		{
			sum=0;
			num++;
		}
	}
	return num;
}
int Main()
{
	freopen("autoac.in","r",stdin);freopen("autoac.out","w",stdout);
	scanf("%d%d",&n,&k);
	for(i=1;i<=n;i++)scanf("%d",&a[i]);
	for(i=1;i<=1000;i++)if(check(i)==k)
	{
		ok=1;
		minn=i;
		break;
	}
	if(!ok)
	{
		printf("-1");
		return 0;
	}
	for(i=1000;i>=1;i--)if(check(i)==k)
	{
		maxx=i;
		break;
	}
	printf("%d %d",minn,maxx);
	return 0;
}
int main(){;}
int syy=Main();