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Find number abc

If ba8c0 - a0bb8 = aac3b find number abc. Multiple solutions may exist.

Correct answers: 47

The first user who solved this task is Djordje Timotijevic.

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Fountain pen

In 1830, D. Hyde of Reading, Pa., patented the fountain pen. However, it was 1884 before a truly practical fountain pen was invented by Lewis Waterman. In the first year, 200 Waterman pens were made by hand. Subsequently, Waterman designed machinery to produce them in larger quantities.

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