"""Nested loops"""

# for and while loops can be nested:

for i in range(4) :
    for j in range(3) :
        print i,j
    print

# the range of the inside loop can depend on
# that of the outer loop:

for i in range(10) :
    for j in range(i, 10) :
        print '*',
    print

# a nested loop that prints a multiplication table:

for i in range(1,11) :
    for j in range(1,11) :
        print i*j,'\t',
    print