public static void Main()
var Builder = new StringBuilder();
var Date = new DateTime(2018,1,1);
for(var i = 0; i < 370; i++)
Builder.AppendLine(Date.ToString("d-M-yyyy"));
Builder.AppendLine(Date.ToString("dd-MM-yyyy"));
Builder.AppendLine(Date.ToString("d/M/yyyy"));
Builder.AppendLine(Date.ToString("dd/MM/yyyy"));
Builder.AppendLine(Date.ToString("d M yyyy"));
Builder.AppendLine(Date.ToString("dd MM yyyy"));
Console.WriteLine(Builder.ToString());