#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define gc getchar()
#define pc(x) putchar(x)
template<typename T> void scan(T &x){x = 0;bool _=0;T c=gc;_=c==45;c=_?gc:c;while(c<48||c>57)c=gc;for(;c<48||c>57;c=gc);for(;c>47&&c<58;c=gc)x=(x<<3)+(x<<1)+(c&15);x=_?-x:x;}
template<typename T> void printn(T n){bool _=0;_=n<0;n=_?-n:n;char snum[65];int i=0;do{snum[i++]=char(n%10+48);n/= 10;}while(n);--i;if (_)pc(45);while(i>=0)pc(snum[i--]);}
template<typename First, typename ... Ints> void scan(First &arg, Ints&... rest){scan(arg);scan(rest...);}
template<typename T> void print(T n){printn(n);pc(10);}
template<typename First, typename ... Ints> void print(First arg, Ints... rest){printn(arg);pc(32);print(rest...);}
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
template<typename T>
void pr(T a){std::cerr<<a<<std::endl;}
template<typename T,typename... Args>
void pr(T a, Args... args) {std::cerr<<a<<' ',pr(args...);}
#else
template<typename... Args>
void pr(Args... args){}
#endif
using namespace std;
using ll = long long;
using pii = pair<ll, int>;
const int MM = 1505;
#ifndef ONLINE_JUDGE
void allocate_tickets(vector<vector<int>> s){
for(auto &i: s){
for(auto j: i)
cout<<j<<' ';
cout<<'\n';
}
}
#else
void allocate_tickets(vector<vector<int>> s);
#endif
priority_queue<pii, vector<pii>, greater<pii>> st;
int n, m, k;
vector<vector<int>> a;
int l[MM];
ll find_maximum(int _k, vector<vector<int>> _a){
a = move(_a);
n = size(a), m = size(a[0]), k = _k;
ll ans = 0;
for(int i = 0; i < n; i++){
st.emplace(a[i][0]+a[i][m-k+l[i]], i);
}
for(int tt = 0; tt < n*k/2; tt++){
assert(size(st));
auto i = st.top().second; st.pop();
l[i]++;
if(l[i] < k)
st.emplace(a[i][l[i]]+a[i][m-k+l[i]], i);
}
auto out = a;
for(int i = 0; i < n; i++){
fill(all(out[i]), -1);
}
ll suml = 0, sumr = 0;
int nx = 0;
for(int i = 0; i < n; i++){
for(int j = 0; j < l[i]; j++){
suml += a[i][j];
out[i][j] = nx;
nx = (nx+1)%k;
}
int cont = nx;
int cnt = k-l[i];
for(int j = m-1; cnt > 0; cnt--, j--){
sumr += a[i][j];
out[i][j] = cont;
cont = (cont+1)%k;
}
}
ans = sumr-suml;
allocate_tickets(out);
return ans;
}
#ifndef ONLINE_JUDGE
int main(){
int N, M, K;
scan(N, M, K);
vector<vector<int>> A(N);
for(int i = 0; i < N; i++){
A[i].resize(M);
for(int j = 0; j < M; j++)
scan(A[i][j]);
}
print(find_maximum(K, A));
// print(find_maximum(2, {{0, 2, 5},{1, 1, 3}}));
// print(find_maximum(1, {{5, 9}, {1, 4}, {3, 6}, {2, 7}}));
}
#endif
