#include<bits/stdc++.h>

using namespace std;

const int N=;

int n,x,m,a[N],f[N][N];

int main()

{

    scanf("%d%d%d",&n,&x,&m);

    for (int i=;i<=n;i++)scanf("%d",&a[i]);

    f[][x]=;

    for (int i=;i<=n;i++)

     for (int j=;j<=m;j++)

      {

           if (j+a[i]<=m&&f[i-][j+a[i]])f[i][j]=;

        if (j-a[i]>=&&f[i-][j-a[i]])f[i][j]=;

       }

    for (int i=m;i>=;i--)

     if (f[n][i]){printf("%d",i);return ;}

    printf("-1");

    return ;

}