you have $$$n$$$ $$$(1 \leq n \leq 7000)$$$ days and $$$m$$$ $$$(1 \leq m \leq 10^{18})$$$ songs.
you're given two parameters $$$k$$$ and $$$p$$$. $$$0 \le k \le m$$$ and $$$1 \leq p \leq 4$$$.
on each day $$$i$$$ you're given 3 parameters $$$x_i$$$ $$$a_i$$$ and $$$b_i$$$. meaning $$$x_i$$$ songs will be played starting from $$$b_i$$$-th song, and stepping by $$$k$$$. So songs with indexes $$$b_i, b_i + k (mod \; m), ..., b_i + (x_i - 1) * k (mod \; m)$$$ will be played. Each one of them will be played $$$a_i$$$ times.