search monthly last wednesday

// See https://aka.ms/new-console-template for more information
Enumerable.Range(2021, 10).ToList().ForEach(year => {
    Console.WriteLine($"==================={year}년=================");
    Enumerable.Range(1, 12).ToList().ForEach(month => {
        Console.WriteLine($"============={month}월==============");
        var sday = new DateTime(year, month, 1);
        var eday = sday.AddMonths(1).AddDays(-1);
        
        int correctCnt = 0;
        for(var i=eday.AddDays(-7); i<=eday; i = i.AddDays(1)) {
            if(correctCnt == 0 && i.DayOfWeek == DayOfWeek.Wednesday) continue; 
            if(i.DayOfWeek == DayOfWeek.Wednesday) {
                Console.WriteLine($"매월 마지막주 수요일 일자는:{i.ToString()}, {i.DayOfWeek.ToString()}");
                correctCnt = 0;
                return;
            }
            correctCnt+= 1;
        }
    });
});