#define _CRT_SECURE_NO_WARNINGS
#include "bits/stdc++.h"
#include <random>
using namespace std;


//呪文
#define DUMPOUT cerr
#define dump(...) DUMPOUT<<"  ";DUMPOUT<<#__VA_ARGS__<<" :["<<__LINE__<<":"<<__FUNCTION__<<"]"<<endl;DUMPOUT<<"    ";dump_func(__VA_ARGS__)

typedef unsigned uint; typedef long long ll; typedef unsigned long long ull; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef pair<double, double> pdd; typedef pair<string, string> pss;
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const pair<_KTy, _Ty>& m) { ostr << "{" << m.first << ", " << m.second << "}"; return ostr; }
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const map<_KTy, _Ty>& m) { if (m.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << *m.begin(); for (auto itr = ++m.begin(); itr != m.end(); itr++) { ostr << ", " << *itr; } ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const vector<_Ty>& v) { if (v.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << v.front(); for (auto itr = ++v.begin(); itr != v.end(); itr++) { ostr << ", " << *itr; }	ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const set<_Ty>& s) { if (s.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << *(s.begin()); for (auto itr = ++s.begin(); itr != s.end(); itr++) { ostr << ", " << *itr; }	ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const stack<_Ty>& s) { if (s.empty()) { ostr << "{ }"; return ostr; } stack<_Ty> t(s); ostr << "{" << t.top(); t.pop(); while (!t.empty()) { ostr << ", " << t.top(); t.pop(); } ostr << "}";	return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const list<_Ty>& l) { if (l.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << l.front(); for (auto itr = ++l.begin(); itr != l.end(); ++itr) { ostr << ", " << *itr; } ostr << "}"; return ostr; }
template <typename _KTy, typename _Ty> istream& operator >> (istream& istr, pair<_KTy, _Ty>& m) { istr >> m.first >> m.second; return istr; }
template <typename _Ty> istream& operator >> (istream& istr, vector<_Ty>& v) { for (size_t i = 0; i < v.size(); i++) istr >> v[i]; return istr; }
namespace aux { // print tuple
	template<typename Ty, unsigned N, unsigned L> struct tp { static void print(ostream& os, const Ty& v) { os << get<N>(v) << ", "; tp<Ty, N + 1, L>::print(os, v); } };
	template<typename Ty, unsigned N> struct tp<Ty, N, N> { static void print(ostream& os, const Ty& value) { os << get<N>(value); } };
}
template<typename... Tys> ostream& operator<<(ostream& os, const tuple<Tys...>& t) { os << "{"; aux::tp<tuple<Tys...>, 0, sizeof...(Tys)-1>::print(os, t); os << "}"; return os; }

template<typename A, size_t N, typename T> inline void Fill(A(&array)[N], const T &val) { std::fill((T*)array, (T*)(array + N), val); }

void dump_func() { DUMPOUT << endl; }
template <class Head, class... Tail> void dump_func(Head&& head, Tail&&... tail) { DUMPOUT << head; if (sizeof...(Tail) == 0) { DUMPOUT << " "; } else { DUMPOUT << ", "; } dump_func(std::move(tail)...); }

#define PI 3.14159265358979323846
#define EPS 1e-11
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define all(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())
#ifdef VC
#define scanf scanf_s
#endif

const ll mod=1000000007;
#define INF (1LL << 32)
#define iINF (1 << 30)
#define B '#'
#define W '.' 


int main() {
	char ans[110][110];
	int a, b;
	cin >> a >> b;
	bool flg = false;
	if (b > a) {
		swap(a, b);
		flg = true;
	}
	b--;
	int gyo = b / 50;
	int res = b % 50;
	for (int i = 0; i < 100; i++) {
		for(int j = 0; j < 100; j++){
			ans[i][j] = W;
		} 
	}
	for (int i = 0; i < gyo; i++) {
		for(int j = 0; j < 50; j++) {
			ans[i][2 * j + i % 2] = B;
		}
	}
	for (int j = 0; j < res; j++) {
		ans[gyo][2 * j + gyo % 2] = B;
	}
	for (int i = gyo + 2; i < 100; i++) {
		for (int j = 0; j < 100; j++) {
			ans[i][j] = B;
		}
	}
	//W = 50 * gyo
	int white = a - 50 * gyo - 1;
	if(gyo>0)white+=(50 - res);
	gyo = white / 50;
	res = white % 50;

	for (int i = 99; i > 100 - gyo * 2; i-=2) {
		for (int j = 0; j < 50; j++) {
			ans[i][2 * j] = W;
		}
	}
	for (int j = 0; j < res; j++) {
		ans[100 - 2 * gyo - 2][2 * j] = W;
	}
	if (flg) {
		for (int i = 0; i < 100; i++) {
			for (int j = 0; j < 100; j++) {
				if (ans[i][j] == B )ans[i][j] = W;
				else ans[i][j] = B;
			}
		}
	}
	cout << "100 100" << endl;
	for (int i = 0; i < 100; i++) {
		for (int j = 0; j < 100; j++) {
			printf("%c", ans[i][j]);
		}
		printf("\n");
	}

	return 0;
}

Measured memory_bytes: 256