#include<bits/stdc++.h>
using namespace std;
#define md(a) a=(a%mod+mod)%mod
#define file(a) freopen(#a".in","r",stdin);freopen(#a".out","w",stdout)

bool ST;

int p,q;
inline bool leq(int x,int y){return p*y<=q*x;}

bool ED;

signed main()
{
	int time_st=clock();
	cerr<<(&ST-&ED)/1024.0/1024<<endl;ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>p>>q;if(!leq(4,5)){cout<<"-1 -1";return 0;}
	if(leq(2,3))
	{
		if(p&1)p*=2,q*=2;int n=q,m=3;cout<<n<<' '<<m<<'\n';
		for(int i=1;i<=p/2*3;i++)
		{
			if(i%3==0)cout<<"...\n";
			else cout<<"###\n";
		}
		for(int i=p/2*3+1;i<=n;i++)cout<<"...\n";
		return 0;
	}
	if(p==3&&q==4)
	{
		cout<<"4 4\n";
		cout<<"####\n";
		cout<<"..##\n";
		cout<<"####\n";
		cout<<"##..\n";
		return 0;
	}
	if(p==4&&q==5)
	{
		cout<<"5 5\n";
		cout<<"#.###\n";
		cout<<"###.#\n";
		cout<<".####\n";
		cout<<"##.##\n";
		cout<<"####.\n";
		return 0;
	}
	if(p==7&&q==10)
	{
		cout<<"4 5\n";
		cout<<".###.\n";
		cout<<"##.##\n";
		cout<<"##.##\n";
		cout<<".###.\n";
		return 0;
	}
	if(p==5&&q==7)
	{
		cout<<"6 7\n";
		cout<<"..##.##\n";
		cout<<"####.##\n";
		cout<<"##.###.\n";
		cout<<"##.###.\n";
		cout<<"####.##\n";
		cout<<"..##.##\n";
		return 0;
	}
	cerr<<(clock()-time_st)/1e6<<endl;return 0;
}