# 0803.py

a='largo {0} cm, alto {1} cm'.format(30,15)
print (a)
# largo 30 cm, alto 15 cm

b='largo {lar} cm, alto {alt} cm'.format(lar=30,alt=15)
print (b)
# largo 30 cm, alto 15 cm

print ('{0} {x} {2} {1}'.format(10,11,12,x=99))
# 10 99 12 11

u=[1,5,7,3,4]

for i in range(4): print ('U[{0}] = {1}'.format(i,u[i]))
# U[0] = 1
# U[1] = 5
# U[2] = 7
# U[3] = 3

print ('W[{r[2]}] = {u[2]}'.format(r=range(4),u=u))
# W[2] = 7

class punto:
  def __init__ (A,x,y,z): A.x=x; A.y=y; A.z=z

P=punto(3,5,1)
print ('x={p.x}, y={p.y}, z={p.z}'.format(p=P))
# x=3, y=5, z=1

latino = {'casa': 'domus','villaggio': 'pagus',
  'nave':'navis', 'campo':'ager'}
voci=sorted(latino)
for x in voci: print ('{0} = {1}'.format(x,latino[x]))