# 0805.py

# Algoritmi, 12.10.
for x in (0,1,0.0,[],(),[0],None,'','alfa'):
  print ('{0:<6}{1}'.format(x,bool(x)))

# 0     False
# 1     True
# 0.0   False
# []    False
# ()    False
# [0]   True
# None  False
#       False
# alfa  True

m=124; x=87345.99
a='{0:3} {1:<12.4f}'.format(m,x)
print (a)
# 124 87345.9900

u=50000/4.3; v=20
a='u={u:6.2f}\nv={v:6.2f}'.format(u=u,v=v)
print (a)
# u=11627.91
# v= 20.00

a=58; b=11; c=6
print ('{a:2x}{b:2x}{c:2x}'.format(a=a,b=b,c=c))
# 3a b 6
print ('{a:02x}{b:02x}{c:02x}'.format(a=a,b=b,c=c))
# 3a0b06

a='Ferrara'; b='Roma'; c='Rovigo'
m=max(len(a),len(b),len(c))
print ('|{a:{m}}|\n|{b:{m}}|\n|{c:{m}}|'.format(a=a,b=b,c=c,m=m))
# |Ferrara|
# |Roma   |
# |Rovigo |