C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a[1500]={0},b[1500]={0},i,n;
	double x=0,y=0;
	double x1=0,x2=0;
	cin>>n;
	for(i=0;i<n;i++)cin>>a[i];
	for(i=0;i<n;i++)cin>>b[i];
	for(i=0;i<n;i++){
		x1+=a[i];
		x2+=b[i];
	}
	x2/=n;
	x1/=n;
	for(i=0;i<n;i++){
		x+=(a[i]-x1)*(a[i]-x1);
		y+=(b[i]-x2)*(b[i]-x2);
	}
	if(abs(x)<abs(y))cout<<"jia"<<endl;
	else cout<<"yi"<<endl;
	return 0;
	
}

Python :

n = int(input())
a = input().split()
b = input().split()
av1 = 0
av2 = 0
su1 = 0
su2 = 0
s1 = 0
s2 = 0
l1 = []
l2 = []
for v in a:
    l1.append(int(v))
for v in b:
    l2.append(int(v))
for i in range(0, n):
    su1 += l1[i]
av1 = su1 / n
for i in range(0, n):
    su2 += l2[i]
av2 = su2 / n
for i in range(0, n):
    s1 += (l1[i] - av1) * (l1[i] - av1)
for i in range(0, n):
    s2 += (l2[i] - av2) * (l2[i] - av2)
if s1 < s2:
    print('jia')
if s1 > s2:
    print('yi')