import sys try: import os f = open('input.txt', 'r') sys.stdin = f except FileNotFoundError: None from math import sqrt, ceil input=lambda: sys.stdin.readline().strip() n= int(input()) d=int(input()) s=input() now=0 # ji = {i:0 for i in range(d+1)} def gousei(di,dii): return {i:di[i]+dii[i] for i in range(d+1)} def bibun(di): ans = {i:0 for i in range(d+1)} for i in range(d): ans[i] = di[i+1]*(i+1) ans[d]=0 return ans # print(gousei({0:3,1:2,2:4,3:0,},{0:2,1:2,2:4,3:4})) def shin(): global now ans = expr() while now