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Number Sequence 题目：https://acm.hdu.edu.cn/showproblem.php?pid=1005 Problem Description A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, and n, you are to calculate the value of f(n). Input

A+B for Input-Output Practice (VIII) 题目：https://acm.hdu.edu.cn/showproblem.php?pid=1096 Problem Description Your task is to calculate the sum of some integers. Input Input contains an integer N in the first line, and then N lines follow. Each line starts w