Why I am getting wrong answer, which test case is failing in my code for MULTHREE problem

CodeChef-DSA-learners
1

Hi, kindly help to find why this code is failing. It is working on sample test case and the logic also is same as the one used by others still when I submit it gives wrong answer. I am not able to find for which test case my code is giving wrong answer. Kindly someone help me in this.
Thanks

#include<bits/stdc++.h>
#include <iostream>
using namespace std;

int main() {
	// your code goes here
	long long int t;
	cin>>t;
	int d0, d1;
	long long int sum, k;
	long long int ng, nr;
	long long int sum_nr;
	while(t--){
	    sum = 0;
	    cin>>k>>d0>>d1;
	    sum_nr = (d0+d1)%10;
	    if(k == 2){
	        if((d0+d1)%3 == 0){
	            cout<<"YES";
	        }
	        else{
	            cout<<"NO";
	        }
	    }
	    else{
    	    // pattern repeat with every 4 element
    	    ng = (k-3)/4;
    	    nr = (k-3)%4;
    	    for( long long int i=0;i<nr;i++){
    	        sum_nr = (2*sum_nr)%10;
    	        sum+=sum_nr;
    	    }
    	    sum+=(d0 + d1 + (d0 + d1)%10 + ng*20);
    	 //   cout<<sum;
    	    if(sum%3==0){
    	        cout<<"YES";
    	    }
    	    else{
    	        cout<<"NO";
    	    }
	    }
	    cout<<"\n";
	}
	return 0;
}