find the difference of two maps in csharp

main.cs
Dictionary<string, int> map1 = new Dictionary<string, int>();
map1.Add("apple", 3);
map1.Add("banana", 2);
map1.Add("orange", 1);

Dictionary<string, int> map2 = new Dictionary<string, int>();
map2.Add("apple", 3);
map2.Add("banana", 1);
map2.Add("grape", 4);

// Find keys in map1 that are not in map2
var keysOnlyInMap1 = map1.Keys.Except(map2.Keys);

// Find keys in map2 that are not in map1
var keysOnlyInMap2 = map2.Keys.Except(map1.Keys);

// Find keys that are in both maps but with different values
var differentValues = map1.Where(kv => map2.ContainsKey(kv.Key) && map2[kv.Key] != kv.Value)
                          .ToDictionary(kv => kv.Key, kv => (kv.Value, map2[kv.Key]));

Console.WriteLine("Keys only in Map1: " + string.Join(", ", keysOnlyInMap1));
Console.WriteLine("Keys only in Map2: " + string.Join(", ", keysOnlyInMap2));
Console.WriteLine("Different values: " + string.Join(", ", differentValues));
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main.cs
Keys only in Map1: orange
Keys only in Map2: grape
Different values: banana:(2, 1)
83 chars
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