Given F={ƒ1,ƒ2,ƒ3,ƒ4,ƒ5} and the positive integer
a = 1063372983859383822659896863485180493292114435884278500721179432442295702265853344099146309176061542601297283672538125935809
find a solution of the equation ƒ5(n) = a.

Number's Length (in bits) : 409
Decimal Digits: 124