#include <iostream>
#include <bitset>
#include <random>
#include <chrono>
#include <iomanip>
#include <set>
#include <map>
#include <queue>
#include <deque>
#include <string>
#include <stack>
#include <ranges>
#include <algorithm>
#include <vector>
using namespace std;
using ll=long long;

#include <atcoder/all>
using mint=atcoder::modint998244353;

ostream& operator<<(ostream& os,const mint& x){
	os<<x.val();
	return os;
}
istream& operator>>(istream& is,mint& x){
	int t;
	is>>t;
	x=t;
	return is;
}

template <typename S,typename T>
ostream& operator<<(ostream& os,const pair<S,T>& p);
template <typename S,typename T>
istream& operator>>(istream& is,pair<S,T>& p);
template <typename T,size_t n>
ostream& operator<<(ostream& os,const array<T,n>& arr);
template <typename T,size_t n>
istream& operator>>(istream& is,array<T,n>& arr);
template <typename T>
ostream& operator<<(ostream& os,const vector<T>& vec);
template <typename T>
istream& operator>>(istream& is,vector<T>& vec);

template <typename S,typename T>
ostream& operator<<(ostream& os,const pair<S,T>& p){
	os<<p.first<<" "<<p.second;
	return os;
}
template <typename S,typename T>
istream& operator>>(istream& is,pair<S,T>& p){
	is>>p.first>>p.second;
	return is;
}

template <typename T,size_t n>
ostream& operator<<(ostream& os,const array<T,n>& arr){
	for(int i=0;i<n;i++)os<<arr[i]<<(i+1==n?"":" ");
	return os;
}
template <typename T,size_t n>
istream& operator>>(istream& is,array<T,n>& arr){
	for(int i=0;i<n;i++)is>>arr[i];
	return is;
}
template <typename T>
ostream& operator<<(ostream& os,const vector<T>& vec){
	for(int i=0;i<(int)vec.size();i++)os<<vec[i]<<(i+1==(int)vec.size()?"":" ");
	return os;
}
template <typename T>
istream& operator>>(istream& is,vector<T>& vec){
	for(int i=0;i<(int)vec.size();i++)is>>vec[i];
	return is;
}

template<class... Vecs>
void input_vec(Vecs&... vs) {
    const auto n = get<0>(tie(vs...)).size();

    for (size_t i = 0; i < n; ++i)
        ((cin >> vs[i]), ...);
}

template <class... Vecs>
void output_vec(const Vecs&... vs) {
    const auto n = get<0>(tie(vs...)).size();

    for (size_t i = 0; i < n; ++i) {
        bool first = true;
        (((cout << (exchange(first, false) ? "" : " ") << vs[i])), ...);
        cout << endl;
    }
}

template <typename T>
vector<T> make_unique(vector<T> vec){
	ranges::sort(vec);
	vec.erase(unique(vec.begin(),vec.end()),vec.end());
	return vec;
}

vector<int> Iota(int n,int s=0){
	vector<int> res(n);
	iota(res.begin(),res.end(),s);
	return res;
}

vector<ll> Iotall(int n,ll s=0){
	vector<ll> res(n);
	iota(res.begin(),res.end(),s);
	return res;
}
void YESNO(bool f){
	if(f)cout<<"Yes"<<endl;
	else cout<<"No"<<endl;
}

using vl=vector<ll>;
using vvl=vector<vector<ll>>;
using vvvl=vector<vector<vector<ll>>>; 
using vi=vector<int>;
using vvi=vector<vector<int>>;
using vvvi=vector<vector<vector<int>>>;
int main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cout<<fixed<<setprecision(10);
	int n,k;
	cin>>n>>k;
	vi s(2),t(2);
	cin>>s>>t;
	int d=abs(s[0]-t[0])+abs(s[1]-t[1]);
	if(!(d<=k&&k<=2*d&&(d+k)%2==0)){
		cout<<-1<<endl;
		return 0;
	}
	bool udrev=(s[0]>t[0]),lrrev=(s[1]>t[1]);
	if(udrev){
		s[0]=n-s[0]+1;
		t[0]=n-t[0]+1;
	}
	if(lrrev){
		s[1]=n-s[1]+1;
		t[1]=n-t[1]+1;
	}
	vector<string> ans(n,string(n,'.'));
	int p=s[0]+s[1]-2,q=t[0]+t[1]-2;
	int c=1-(p&1);
	k-=d;
	for(int i=0;i<=2*n-2;i++){
		int nc=1-c;
		if(p<i&&i<=q&&k==0){
			nc=c;
		}else if(p<i&&i<=q){
			k--;
		}
		for(int x=0;x<n;x++){
			int y=i-x;
			if(0<=y&&y<n){
				if(nc)ans[x][y]='#';
				else ans[x][y]='.';
			}
		}
		c=nc;
	}
	if(lrrev){
		for(auto& x:ans)ranges::reverse(x);
	}
	if(udrev){
		ranges::reverse(ans);
	}
	for(auto& x:ans)cout<<x<<endl;
}