3> Dictionary(uniqueKeysWithValues: [(offset: 0, element: "a")]) $R2: [Int : String] = 1 key/value pair { [0] = { key = 0 value = "a" } } 3> Dictionary(uniqueKeysWithValues: [(offset: 0, element: "a")]) $R2: [Int : String] = 1 key/value pair { [0] = { key = 0 value = "a" } }