static void Main(string[] args)
string[] arrayOfStrings1 = Console.ReadLine().Split().ToArray();
string[] arrayOfStrings2 = Console.ReadLine().Split().ToArray();
for (int i = 0; i < arrayOfStrings2.Length; i++)
for (int j = 0; j < arrayOfStrings1.Length; j++)
if (arrayOfStrings2[i] == arrayOfStrings1[j])
Console.Write($"{arrayOfStrings2[i]} ");