# Lotka-Volterra equations

# Subroutine to simulate predator/prey relationship
def LV(Prey, Predators, A, B, C, D, E, G):
    Generation = 0
    while Generation < G and Prey > 1 and Predators > 1:
        Generation = Generation + 1
        PreyGrowth = E ** (A - (C * Predators))
        Prey = Prey * PreyGrowth
        PredatorGrowth = E ** (( D * C * Prey) - B)
        Predators = Predators * PredatorGrowth
        print("Generation: {} | Prey: {:.0f} | Predators: {:.0f}".format(Generation, Prey, Predators))

# Main program
Prey = 30
Predators = 5
A = 0.8
B = 0.5
C = 0.1
D = 0.3
E = 2.718
G = 10
LV(Prey,Predators,A,B,C,D,E,G)