gistfile1.txt

def iterate(n, m, j, k):
    for i1 in range(n):
        for i2 in range(m):
            for i3 in range(j):
                for i4 in range(k):
                    yield (i1, i2, i3, i4)


for record in iterate(10, 20, 30, 40):
    test_it(record)