#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

#define rd_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);})
#define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
#define wt(v) ({unsigned _z=v;do*--wp=_z%10+48;while(_z/=10);})
#define wt1(v) ({char wbuf[64],*wp=wbuf+sizeof wbuf;wt(v);write(1,wp,wbuf+sizeof wbuf-wp);})
#define rep(v,e) for(typeof(e) v=0;v<e;++v)

int a[14],b[14];
int s[600],t=0;
char u[1<<14];

int main(){
	rd_init();
	int n=rd();
	int m=rd();
	int w=rd();
	rep(i,n){
		a[i]=rd();
	}
	rep(i,n){
		b[i]=rd();
	}
	rep(i,m){
		a[i+n]=-rd();
	}
	rep(i,m){
		b[i+n]=-rd();
	}
	n+=m;
	int z=0;
	s[t++]=0;
	s[t++]=0;
	s[t++]=0;
	while(t){
		int xv=s[--t];
		int xw=s[--t];
		int xx=s[--t];
		if(z<xv){
			z=xv;
		}
		rep(i,n){
			if(!(xx&1<<i)){
				int y=xw+a[i];
				if(y>=0&&y<=w){
					int j=xx|1<<i;
					if(!u[j]){
						u[j]=1;
						s[t++]=j;
						s[t++]=y;
						s[t++]=xv+b[i];
					}
				}
			}
		}
	}
	wt1(z);
	_exit(0);
}