A_Fox_And_Snake.cpp

/*

||-------------------------------||
||      Mohiul Islam Miraz       ||
||-------------------------------||

*/

#include <bits/stdc++.h>
#define swift                     \
    ios_base::sync_with_stdio(0); \
    cin.tie(NULL);
#define sac sort(v.begin(), v.end())
#define sdc sort(v.begin(), v.end(), greater<int>())
#define f1 bool flag = true
#define f0 bool flag = false
#define c0 int count = 0
#define c1 int count = 1
#define s0 long long sum = 0
#define a0 long long ans = 0
#define ll long long
#define yes cout << "YES" << endl
#define no cout << "NO" << endl
#define minus cout << -1 << endl
#define cnt cout << count << endl
#define sm cout << sum << endl
using namespace std;

int main()
{
    swift;
    int t = 1;
    // cin >> t;

    while (t--)
    {
        int n, m, i, j;
        cin >> n >> m;

        for (i = 1; i <= n; i++)
        {
            if (i % 2 == 1)
            {

                for (j = 1; j <= m; j++)
                {
                    cout << '#';
                }
            }
            else
            {

                if (i % 4 == 2)
                {

                    for (j = 1; j < m; j++)
                    {
                        cout << '.';
                    }
                    cout << '#';
                }
                else
                {

                    cout << '#';
                    for (j = 2; j <= m; j++)
                    {
                        cout << '.';
                    }
                }
            }

            cout << endl;
        }
    }

    return 0;
}