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CHALLENGE

ACTIVITY

$1\mathrm{.}3\mathrm{.}3$: Input$/$Output$.$

$544330\mathrm{.}3930466\mathrm{.}9329y7$

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Read four integers from input and assign them to side$1,$ side$2,$ side$3,$ and side$4,$ respectively. Then, output the sum of the four integers.

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