操作系统使用时间片轮转调度算法管理进程。每个时间片内，CPU 执行当前进程 1 个单位时间，然后将进程移到队列尾部（如果未执行完）。请模拟这个调度过程，输出每个时间片的执行情况和进程完成信息。
输入包含多行： 第一行：整数 N（1 ≤ N ≤ 100），表示进程数量 接下来 N 行：每行两个整数 id 和 t（1 ≤ id ≤ 1000，1 ≤ t ≤ 100），表示进程 id 及其所需的总时间片数
对于每个时间片，输出一行执行信息： Time slice x: Process y is running, remaining time: z 其中 x 是当前时间片编号，y 是进程 id，z 是剩余时间片数。 如果进程在当前时间片结束后完成，紧接着输出一行： Process y completed 最后输出一行总时间： All processes completed in x time units
3 1 3 2 2 3 4
Time slice 1: Process 1 is running, remaining time: 2 Time slice 2: Process 2 is running, remaining time: 1 Time slice 3: Process 3 is running, remaining time: 3 Time slice 4: Process 1 is running, remaining time: 1 Time slice 5: Process 2 is running, remaining time: 0 Process 2 completed Time slice 6: Process 3 is running, remaining time: 2 Time slice 7: Process 1 is running, remaining time: 0 Process 1 completed Time slice 8: Process 3 is running, remaining time: 1 Time slice 9: Process 3 is running, remaining time: 0 Process 3 completed All processes completed in 9 time units