#include<bits/stdc++.h>
using namespace std;
int main(){
    int i;
    cin>>i;
    int m=0;
    int a=i/100;
	int b=(i%100)/10;
	int c=i-a*100-b*10;
    if(a==c){
        m=i;
        cout<<"Yes";
    }else{
        cout<<"No";
    }
    return 0;
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b[5];
	cin>>a;
	b[0]=a/100;
	b[1]=a/10%10;
	b[2]=a%10;
	if(b[0]==b[2]){
		cout<<"Yes"<<endl;
	}else{
		cout<<"No"<<endl;
	}
	return 0;
}

Python :

# coding=utf-8
i=int(input())
a=int(i/100)
b=int((i/10)%10)
c=int(i%10)
if(a==c):
    print("Yes")
else:
    print("No")
    
    a=int(input())
b = int(input())
c = int(input())
a=int(a-c/b)
print(a)