#include <iostream>
#include <stdio.h>
#include <iomanip>
#include <math.h>
using namespace std;
const int N = 1e6 + 10;
const int INF = 0x3f3f3f3f;
int main()
{
	int x1 , y1 , x2 , y2 , jl1 , jl2 , j;
	cin >> x1 >> y1 >> x2 >> y2;
	jl1 = fabs( x1 - x2 ); 
	jl2 = fabs( y1 - y2 );
	j = jl1 + jl2;
	cout << j;
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

int main(void)
{
    int x1, y1;
    int x2, y2;

    int i, j;

    cin >> x1 >> y1 >> x2 >> y2;

    i = abs(x1 - x2);
    j = abs(y1 - y2);

    cout << i + j;

    return 0;
}

#include<iostream>
#include<iomanip>
#include<cmath>
using namespace std;
int main()
{
	int x1,y1,x2,y2;
	cin>>x1>>y1>>x2>>y2;
	cout<<abs(x1-x2)+abs(y1-y2);
	return 0;
}

**#include<iostream> using namespace std; int main() { int xx,yy,x,y; cin >> x >> y >> xx >> yy; int sum = fabs(xx - x) + fabs(yy - y); cout << sum << endl; return 0; } **

#include <iostream> #include <stdio.h> #include <string.h> #include <queue> #include <math.h> #include <vector> #include <algorithm> #include <iomanip> #include <stack> #include <bits/stdc++.h> using namespace std; int main(void){ int x1,y1; int x2,y2;

cin>> x1>>y1>>x2>>y2;
int i,j;
i=abs(x1-x2);
j=abs(y1-y2);
cout << i+j;
return 0;

}

#include<iomanip>
#include<cmath>
#include<cstdio>
#include<bits/stdc++.h>
using namespace std;
int x,y,xx,yy;
int main()
{
	cin>>x>>y>>xx>>yy;
	int a=abs(x-xx);
	int b=abs(y-yy);
	cout<<a+b;
	return 0;
}

#include <iostream>
#include <cstdio>
#include <cstring>
#include <string>
#include <iomanip>
// #include <cmath>
using namespace std;
#define long long LL
const int N = 1e6+6;
const int INF = 0x3f3f3f3f;
int x1,y1,x2,y2;
int ans(int x){
    if (x > 0) return x;
    else return 0 - x;
}
int manhaton(int a1,int b1,int a2,int b2){
    return ans(a1 - a2) + ans(b1 - b2);
}
int main(){
    cin >> x1 >> y1 >> x2 >> y2;
    cout << manhaton(x1,y1,x2,y2);
    return 0;
}

#include <stdio.h> #include <iostream> #include <math.h> using namespace std; int main() { int x1 , y1 , x2 , y2; cin>> x1 >> y1 >> x2 >> y2; int a , b , a1 , b1 , d; a = x1 - x2 ; b = y1 - y2 ; a1 = fabs(a); b1 = fabs(b); d = a1 + b1; cout << d ;

}