#include<cstdio>
#define N 100001
using namespace std;
int n,m,opl,opr;
double totx,toty,totxy,totxx;
double px,py,ans,fz,fm;
double x[N],y[N],s,t;
struct node
{int l,r,siz;double sumx,sumy,fx,fy,xx,xy;double tagx,tagy;bool v;double toti,toti2;
}tr[N*4];
void up(int k)
{tr[k].sumx=tr[k<<1].sumx+tr[k<<1|1].sumx;tr[k].sumy=tr[k<<1].sumy+tr[k<<1|1].sumy;tr[k].xx=tr[k<<1].xx+tr[k<<1|1].xx;tr[k].xy=tr[k<<1].xy+tr[k<<1|1].xy;tr[k].toti=tr[k<<1].toti+tr[k<<1|1].toti;tr[k].toti2=tr[k<<1].toti2+tr[k<<1|1].toti2;
}
void down(int k)
{tr[k<<1].xy+=tr[k].fy*tr[k<<1].sumx+tr[k].fx*tr[k<<1].sumy+tr[k].fx*tr[k].fy*tr[k<<1].siz;tr[k<<1|1].xy+=tr[k].fy*tr[k<<1|1].sumx+tr[k].fx*tr[k<<1|1].sumy+tr[k].fx*tr[k].fy*tr[k<<1|1].siz;tr[k<<1].xx+=tr[k].fx*tr[k<<1].sumx+tr[k].fx*tr[k<<1].sumx+tr[k].fx*tr[k].fx*tr[k<<1].siz;tr[k<<1|1].xx+=tr[k].fx*tr[k<<1|1].sumx+tr[k].fx*tr[k<<1|1].sumx+tr[k].fx*tr[k].fx*tr[k<<1|1].siz;tr[k<<1].sumx+=tr[k<<1].siz*tr[k].fx;tr[k<<1].sumy+=tr[k<<1].siz*tr[k].fy;tr[k<<1|1].sumx+=tr[k<<1|1].siz*tr[k].fx;tr[k<<1|1].sumy+=tr[k<<1|1].siz*tr[k].fy;tr[k<<1].fx+=tr[k].fx;tr[k<<1].fy+=tr[k].fy;tr[k<<1|1].fx+=tr[k].fx;tr[k<<1|1].fy+=tr[k].fy;tr[k].fx=tr[k].fy=0;
}
void down2(int k)
{tr[k<<1].sumx=tr[k].tagx*tr[k<<1].siz+tr[k<<1].toti;tr[k<<1|1].sumx=tr[k].tagx*tr[k<<1|1].siz+tr[k<<1|1].toti;tr[k<<1].sumy=tr[k].tagy*tr[k<<1].siz+tr[k<<1].toti;tr[k<<1|1].sumy=tr[k].tagy*tr[k<<1|1].siz+tr[k<<1|1].toti;tr[k<<1].xy=tr[k].tagx*tr[k].tagy*tr[k<<1].siz+tr[k<<1].toti*(tr[k].tagx+tr[k].tagy)+tr[k<<1].toti2;tr[k<<1|1].xy=tr[k].tagx*tr[k].tagy*tr[k<<1|1].siz+tr[k<<1|1].toti*(tr[k].tagx+tr[k].tagy)+tr[k<<1|1].toti2;tr[k<<1].xx=tr[k].tagx*tr[k].tagx*tr[k<<1].siz+tr[k<<1].toti*tr[k].tagx*2+tr[k<<1].toti2;tr[k<<1|1].xx=tr[k].tagx*tr[k].tagx*tr[k<<1|1].siz+tr[k<<1|1].toti*tr[k].tagx*2+tr[k<<1|1].toti2;tr[k<<1].tagx=tr[k].tagx; tr[k<<1|1].tagx=tr[k].tagx;tr[k<<1].tagy=tr[k].tagy;tr[k<<1|1].tagy=tr[k].tagy;tr[k<<1].v=tr[k<<1|1].v=true;tr[k].tagx=tr[k].tagy=tr[k].v=0;tr[k<<1].fx=tr[k<<1].fy=0;tr[k<<1|1].fx=tr[k<<1|1].fy=0;
}
void build(int k,int l,int r)
{tr[k].l=l; tr[k].r=r;  tr[k].siz=r-l+1; if(l==r){tr[k].sumx=x[l];tr[k].sumy=y[l];tr[k].xx=x[l]*x[l];tr[k].xy=x[l]*y[l];tr[k].toti=l;tr[k].toti2=(double)l*l;return;}int mid=l+r>>1;build(k<<1,l,mid);build(k<<1|1,mid+1,r);up(k);
}
void query(int k)
{if(tr[k].l>=opl&&tr[k].r<=opr){totx+=tr[k].sumx;toty+=tr[k].sumy;totxy+=tr[k].xy;totxx+=tr[k].xx;return;}if(tr[k].v) down2(k);if(tr[k].fx||tr[k].fy) down(k);int mid=tr[k].l+tr[k].r>>1;if(opl<=mid) query(k<<1);if(opr>mid) query(k<<1|1);
}
void add(int k)
{if(tr[k].l>=opl&&tr[k].r<=opr){tr[k].xy+=t*tr[k].sumx+s*tr[k].sumy+s*t*tr[k].siz;tr[k].xx+=s*tr[k].sumx+s*tr[k].sumx+s*s*tr[k].siz;tr[k].sumx+=s*tr[k].siz;tr[k].sumy+=t*tr[k].siz;tr[k].fx+=s;tr[k].fy+=t;return;}if(tr[k].v) down2(k);if(tr[k].fx||tr[k].fy) down(k);int mid=tr[k].l+tr[k].r>>1;if(opl<=mid) add(k<<1);if(opr>mid) add(k<<1|1);up(k);
}
void change2(int k)
{if(tr[k].l>=opl&&tr[k].r<=opr){tr[k].fx=tr[k].fy=0;tr[k].tagx=s;tr[k].tagy=t;tr[k].v=true;tr[k].sumx=s*tr[k].siz+tr[k].toti;tr[k].sumy=t*tr[k].siz+tr[k].toti;tr[k].xy=s*t*tr[k].siz+tr[k].toti*(s+t)+tr[k].toti2;tr[k].xx=s*s*tr[k].siz+tr[k].toti*s*2+tr[k].toti2;return;}if(tr[k].v) down2(k);if(tr[k].fx||tr[k].fy) down(k);int mid=tr[k].l+tr[k].r>>1;if(opl<=mid) change2(k<<1);if(opr>mid) change2(k<<1|1);up(k);
}
int main()
{scanf("%d%d",&n,&m);for(int i=1;i<=n;i++) scanf("%lf",&x[i]);for(int i=1;i<=n;i++) scanf("%lf",&y[i]);build(1,1,n);int z,u;while(m--){scanf("%d",&z);if(z==1){scanf("%d%d",&opl,&opr);u=opr-opl+1;totx=0;    toty=0; totxy=0; totxx=0;query(1);px=totx/u;py=toty/u;fz=totxy-totx*py-px*toty+px*py*u;fm=totxx-totx*px*2+px*px*u;ans=fz/fm;printf("%.10lf\n",ans);}else if(z==2){scanf("%d%d",&opl,&opr);scanf("%lf%lf",&s,&t);add(1);}else{scanf("%d%d",&opl,&opr);scanf("%lf%lf",&s,&t);change2(1);}}return 0;
}