Inter nit day 2 2020

#include<iostream>
#include<bits/stdc++.h>
using namespace std;
#define ll int
int main()
{
    ll n;
    cin>>n;
    ll a[n][n];
    for(ll i = 0; i < n; i++)
    {
        for(ll j = 0; j < n; j++)
        {
            cin>>a[i][j];
        }
    }
    ll q;
    cin>>q;
    while(q--)
    {
        ll x;
        ll y,b,c;
        cin>>x;
        cin>>y>>b>>c;
        if(x ==1)
        {
            for(ll  i = 0; i < n; i++)
            {
                for(ll j = 0; j < n; j++)
                {
                    if((y<i+1||y==i+1) && (i+1<b||i+1==b) && (1<j+1||1==j+1) && (j+1<n||j+1==n))
                    a[i][j] = a[i][j] ^ c;
                }
            }
        }
        else if(x == 2)
        {
            for(ll i = 0 ;i < n; i++)
            {
                for(ll j = 0; j < n; j++)
                {
                    if((1<i+1||1==i+1)&& (i+1<n||i+1 == n) && (y<j+1||y==j+1) && (j+1<b||j+1 == b))
                    a[i][j] = a[i][j] ^ c;
                }
            }
        }
        
    }
    ll sum = 0;
    for(ll i = 0; i < n; i++)
    {
        for(ll j = 0; j < n ; j++)
        {
            if(i == j)
            sum = sum + a[i][j];
        }
    }
    cout<<sum<<endl;

    return 0;
}
//IN SOME TEST CASES THERE IS RUNTIME ERROR