import bin
print 'the value of 123 in binary is', bin.decToBin(123)
print 'the value of 147 in binary is', bin.decToBin(147)

print 'the value of 1100 in decimal is', bin.binToDec(1100)
print 'the value of 10010011 in decimal is', bin.binToDec(10010011)

a = 'it is snowy today'
print a
b = a[:4] + 'zzz' + a[4:]
print b,
print a