Looking at the dictionary below, let's say I wanted to check if there's a d in the entire dictionary, it won't let me do that because there are other numbers besides it, how do I tell my code to ignore them?

```

view_list = {'24169': '11h', '31254': '14h', '16155': '1d', '4565': '1d', '165929': '2d', '12906': '3d'}

                    for letter in view_list:
                        if "w" in view_list.values():
                            print("week")

                        if "d" in view_list.values():
                            print("day")

```