class student():
    pass
aman=student()
mani=student()
aman.name = "amandeep"
aman.std = 2
aman.roll_no = 1234
mani.name="Mandeep"
mani.subjects = ['hindi','angreji','science','mathematcs','chemisrty']
print(aman.name ,mani.name,mani.subjects)