'''first use of a variable for index values'''

s = 'word'
print 'The full string is: ', s
n = len(s)
for i in range(n):
    print
    print 'i =', i
    print 'The letter at index i:', s[i]
    print 'The part before index i (if any):', s[:i]
    print 'The part before index i+2:', s[:i+2]