Let \( b_1 b_2 b_3 b_4 \) be a \( 4 \)-element permutation with \( b_i \in \{1, 2, 3, \ldots, 100\} \) for \( 1 \le i \le 4 \) and \( b_i \ne b_j \) for \( i \ne j \), such that either \( b_1, b_2, b_3 \) are consecutive integers or \( b_2, b_3, b_4 \) are consecutive integers. Then the number of such permutations \( b_1 b_2 b_3 b_4 \) is equal to ________.
