ModInverse com Big Integer no anitigo algoritmo
Revert "ModInverse com Big Integer no anitigo algoritmo"

This reverts commit b8efe902fcaf2be778e7d98ecdae85840a414833.
Revert "Revert "ModInverse com Big Integer no anitigo algoritmo""

This reverts commit b872887f23acb8fbcb3445254abc27c3b5b94a70.