第二题 -------------------- # 矩阵快速幂,咋也过不了 line = input().split(' ') line = list(map(int, line)) a1, a2, a3, a4 = line[0], line[1], line[2], line[3] n = line[4] mod = int(pow(10, 9)+7) base = [[0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1], [1, 1, 0, 1]] init = [[a1], [a2], ...