P = 662637863126462165676291379799 t,o,r,o,b = 0,1,2,3,4 for i in range(1, 10**10000): t,o,r,o,b = ( (t+o+r+o+b)%P, (r+o+b)%P, (b+o+r)%P, (r+o)%P, (b+o+o)%P, ) print((t+o-r+o-b+P)%P)