Compute the number of passwords that are length 6, where characters can be special

characters, digits, or letters, with no repeated characters and the first character cannot be a

special character.

Consider the following definitions for sets of characters: Digits [0, 1, 2, 3, 4,5,6,7,8,9 Letters a, b, c, d, e, f, g, h, i, j, k, I, m, n, o, p, q, r, s, t, u, v, w, x, y, z] Special characters-(*, &, $, # }