Come to think of it, I guess 4! is the answer to the number of ways we can arrange the 4: abcd abdc acbd acdb adbc adcb times 4 to count all the arrangements starting with b, c, and d
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Come to think of it, I guess 4! is the answer to the number of ways we can arrange the 4: abcd abdc acbd acdb adbc adcb times 4 to count all the arrangements starting with b, c, and d