``` #include <iostream> #include <cstring> #include <algorithm> using namespace std; int w, n, m; int main() { cin >> w >> m >> n; m--, n--; int x1, y1, x2, y2; x1 = m/w, x2 = n/w; if((m/w)%2!=0) y1 = w - 1 - m%w; else y1 = m%w; if((n/w)%2!=0) y2 = w - 1 - n%w; else y2 = n%w; cout << abs(x1 - x2) + abs(y1 - y2); return 0; } ```

``` import math w,m,n=map(int,input().split()) a=math.ceil(m/w) b=math.ceil(n/w) x=abs(a-b) if a%2!=0: x1=m%w else: x1 = w - (m % w) + 1 if b%2!=0: x2 = n % w else: x2=w-(n%w)+1 print(x+abs(x1-x2)) ```

``` #include <bits/stdc++.h> typedef long long LL; using namespace std; int n,w,m; int main() { cin>>w>>m>>n; m--,n--; int x1=m/w,x2=n/w; int y1=m%w,y2=n%w; if(x2%2) y2=w-1-y2; if(x1%2) y1=w-1-y1; cout<<abs(x1-x2)+abs(y1-y2)<<endl; return 0; } ```