rong = int(input('moi nhap chieu rong:'))
dai = int(input('moi nhap chieu dai:'))
chuvi = (rong + dai)*2
dientich = dai * rong
print('chuvi:',chuvi)
print('dientich:',dientich)

# print('so ban vua nhap vao:',so)

# n = 'hello world'
# print(n) 