-----
Doing 5 + 6
High: 0
Low: 11
Result: 11
-----
Doing 18446744073709551615 + 23
High: 1
Low: 22
Result: 18446744073709551638
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Doing 18446744073709551615 + 18446744073709551615
High: 1
Low: 18446744073709551614
Result: 36893488147419103230