c =3*1e8

f= 70*1e9

lama=c/f

print('wavelength is :',lama,'m')

b =4*1e9

print('The range resolution is:',c/(b*2),'m')

b =2000

print('The range resolution is:',c/(b*2),'m')

x = range(100)
print(x[::2],x[::3],x[10:40:6])