67. There are more than sixty people standing in a line, starting from the left and counting $1, 2, 3, 4$ in a cycle, and then from the right to the left starting from 1 and counting $1, 2, 3$ in a cycle. It is found that exactly 12 people reported both 1 and 2. This line has a maximum of $\qquad$ people.
Answer: 69