public void part1()
{
var lines = new string[]
{
"1-3 a: abcde", // valid
"1-3 b: cdefg", // invalid
"2-9 c: ccccccccc"
};
var pps = Passwords.ConvertPasswords(lines);
var result = Passwords.ValidPasswordsPolicy(pps);
Assert.Equal(1, result);
}