#include<bits/stdc++.h>
#define int long long
using namespace std;
int i,j,n,m,k,l,x,y,a[31],b[31],L,R,f[3001],num,ss,tt,mx,wz[3001];
vector<pair<int,int> > G[301];
signed main()
{
//	freopen("1.in","r",stdin);
    ios::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);
    cin>>L>>R;
    x=L;while(x){a[++a[0]]=x%2;x/=2;}
    x=R;while(x){b[++b[0]]=x%2;x/=2;}
    ss=1;tt=2;num=2;
    if(a[0]!=b[0])
    {
        if(b[0]-1>=a[0]+1) mx=b[0]-2;
        for(int i=b[0]-1;i>=1;i--) if(b[i]==1) mx=max(mx,i-1);
        for(int i=a[0]-1;i>=1;i--) if(a[i]==0) mx=max(mx,i-1);
        int pre=tt;
        for(int i=1;i<=mx;i++){
            wz[i]=++num;
            G[wz[i]].push_back({pre,1});
            G[wz[i]].push_back({pre,0});
            pre=wz[i];
        }
        for(int i=b[0]-1;i>=a[0]+1;i--){
            if(i-1>0){
                G[ss].push_back({wz[i-1],1});
            } else {
                G[ss].push_back({tt,1});
            }
        }
        int now=++num;
        G[ss].push_back({now,1});
        for(int i=b[0]-1;i>=1;i--){
           if(i==1) {
                if(b[i]==0) G[now].push_back({tt,0});
                else G[now].push_back({tt,0}),G[now].push_back({tt,1});
            } else {
                if(b[i]==0) {G[now].push_back({++num,0});now=num;}
                else {
                    G[now].push_back({wz[i-1],0});
                    G[now].push_back({++num,1});
                    now=num;
                }
            }
        }
        if(a[0]!=1){
        now=++num;
        G[ss].push_back({now,1});
        for(int i=a[0]-1;i>=1;i--){
            if(i==1) {
                if(a[i]==1) G[now].push_back({tt,1});
                else G[now].push_back({tt,0}),G[now].push_back({tt,1});
            } else {
                if(a[i]==1) {G[now].push_back({++num,1});now=num;}
                else {
                    G[now].push_back({wz[i-1],1});
                    G[now].push_back({++num,0});
                    now=num;
                }
            }
        }
    	} else {
    		G[ss].push_back({tt,1});
		}
    } else {
        int now=ss;int aim=0;
        for(int i=a[0];i>=1;i--) if(a[i]==b[i]) {
        	if(i!=1){
        		G[now].push_back({++num,a[i]});
          	  	now=num;	
			} else G[now].push_back({tt,a[i]});
        } else {
            aim=i;
            break;
        }  
        
        if(aim==1){
            G[now].push_back({tt,1});
            G[now].push_back({tt,0});
        } else if(aim>1){
            x=++num;y=++num;
            G[now].push_back({x,1});
            G[now].push_back({y,0});
            for(int i=aim-1;i>=2;i--) if(b[i]==1) mx=max(mx,i-1);
            for(int i=aim-1;i>=2;i--) if(a[i]==0) mx=max(mx,i-1);
            int pre=tt;
       		for(int i=1;i<=mx;i++){
            	wz[i]=++num;
            	G[wz[i]].push_back({pre,1});
            	G[wz[i]].push_back({pre,0});
            	pre=wz[i];
        	}
            for(int i=aim-1;i>=1;i--){
                if(i==1) {
                    if(b[i]==0) G[x].push_back({tt,0});
                    else G[x].push_back({tt,0}),G[x].push_back({tt,1});
                } else {
                    if(b[i]==0) {G[x].push_back({++num,0});x=num;}
                    else {
                        G[x].push_back({wz[i-1],0});
                        G[x].push_back({++num,1});
                        x=num;
                    }
                }
            }
            for(int i=aim-1;i>=1;i--){
                if(i==1) {
                    if(a[i]==1) G[y].push_back({tt,1});
                    else G[y].push_back({tt,0}),G[y].push_back({tt,1});
                } else {
                    if(a[i]==1) {G[y].push_back({++num,1});y=num;}
                    else {
                        G[y].push_back({wz[i-1],1});
                        G[y].push_back({++num,0});
                        y=num;
                    }
                }
            }
        }
    }
    cout<<num<<endl;
    for(int i=1;i<=num;i++){
        cout<<G[i].size()<<" ";
        for(int j=0;j<G[i].size();j++) cout<<G[i][j].first<<" "<<G[i][j].second<<" ";
        cout<<"\n";
    }
}