#include<bits/stdc++.h> using namespace std; #define rep(i,x,y) for(int i=x;i<y;i++) #define range(a) (a).begin(),(a).end() #define print(A,n) rep(i,0,n){cout<<(i ? " ":"")<<A[i];}cout<<endl; #define pprint(A,m,n) rep(j,0,m){print(A[j],n);} const long mod=1e9+7; const int size=1e5; const int INF=1e9; int main(){ int N,M,K;cin>>N>>M>>K; int A[N][M]; rep(i,0,N){ rep(j,0,M) cin>>A[i][j]; } int dp[N+1][K+1]={}; rep(i,1,N+1)rep(k,0,K+1) dp[i][k]=-1; rep(i,1,N+1)rep(k,0,K+1){ int res=-1; rep(j,0,M){ if(k<A[i-1][j]) continue; if(dp[i-1][k-A[i-1][j]]==-1) continue; res=max(res,dp[i-1][k-A[i-1][j]]+A[i-1][j]); }dp[i][k]=res; } //pprint(dp,N+1,K+1); if(dp[N][K]==-1) cout<<-1<<endl; else cout<<K-dp[N][K]<<endl; }