def function1(x):

x=x+10

y= function2(x,x*2)

return y

def function2(x,y):

z =x+y

return z

def main():

nbr1 = 25

nbr2 = nbr1 + function1(nbr1)

print("nbr1 =", nbr1, "and nbr2 =". nbr2)

main()

please explain the logic as well as to how the answer is obtained( this is in python)