#include<bits/stdc++.h>
using namespace std;
int a[10][10],n,m,bx[25],by[25],ans=0;
int fx[2]={1,0};
int fy[2]={0,1};
void dfs(int x,int y,int stemp){
	bx[stemp]=x; 
	by[stemp]=y; 
	if(x==n&&y==m){
		ans++;
		cout<<ans<<":";
		for(int i=1;i<=stemp;i++){
			cout<<bx[i]<<","<<by[i];
			if(i!=stemp) cout<<"->";
			if(i==stemp) cout<<endl;
		}
	}
	else{
		for(int i=0;i<=1;i++){
			int tx=x+fx[i];
			int ty=y+fy[i];
			if(tx>=1&&tx<=n&&ty>=1&&ty<=m){
				dfs(tx,ty,stemp+1);
			}
		}
	} 
}
int main(){
	cin>>n>>m;
	//cout<<"1:"; 
	dfs(1,1,1);
	return 0;
}
/**************************************************************
	Problem: 1360
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/