Problem

2023 Fermat Problem 24

Quadrilateral ABCD has \angle BCD = \angle DAB = 90^\circ. The perimeter of ABCD is 224 and its area is 2205. One side of ABCD has length 7. The remaining three sides have integer lengths. The sum of the squares of the side lengths of ABCD is S. What is the integer formed by the rightmost two digits of S?

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