This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define ll long long
void solve()
{
ll n,m,k;
cin>>n>>m>>k;
if(k > floor(n/2) * floor(m/2))
{
cout<<"NO"<<endl;
return ;
}
cout<<"YES"<<endl;
ll x = 0,y = 0,s = 0;
for(ll i = 0;i < n;i++)
{
for(ll j = 0;j < m-1;j+=2)
{
if(y != k)y++;
cout<<y<<" "<<y<<" ";
}
if(m % 2 == 1)cout<<y;
cout<<endl;
if(s == 0)
{
s++;
y = x;
}
else
{
s = 0;
if(y == k)y = x;
else x = y;
}
}
return ;
}
int main()
{
ll t;
cin>>t;
while(t--)solve();
return 0;
}
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