肝了半天才肝出来

#include <bits/stdc++.h>
using namespace std;
int y(int a,int b,int c){
    return max(max(a,b),c)-min(a,min(b,c));
}
int z(int a,int b,int c,int d,int e,int f,int g,int h){
    return max(max(max(a,b),max(c,d)),max(max(e,f),max(g,h)))-min(min(min(a,b),min(c,d)),min(min(e,f),min(g,h)));
}
int main(){
    int a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x;
    cin>>a>>b>>c>>d>>e>>f>>g>>h>>i>>j>>k>>l>>m>>n>>o>>p>>q>>r>>s>>t>>u>>v>>w>>x;
    int s1=y(a,b,c),s2=y(d,e,f),s3=y(g,h,i),s4=y(j,k,l),s5=y(m,n,o),s6=y(p,q,r),s7=y(s,t,u),s8=y(v,w,x);
    cout<<z(s1,s2,s3,s4,s5,s6,s7,s8);
    return 0;
}