def main():
# Asking the user to input the values of N, decay const and time step
N, dConst, time = input(
" the length of the 2D,value of the decay constant λ,and the timestep Δt "
).split(" ")
# making the object of our class
test = Atom(int(N), float(dConst), float(time))
simHalf = test.simHalfLife()
actualHalf = test.actualHalfLife()
undecayedNuclei = test.undecayedAtoms()
test.showAtom()
print(f"The simulated half-life is {simHalf}")
print(f"The actual half-life is {actualHalf}")
print(f"The no. of undecayed nuclei are {undecayedNuclei}")
