#include <stdio.h>
int binary_search( int num[], int t ,int begin, int end ){
int left = begin;
int right = end;
while( left<= right ){
int mid = (left+right)/2;
if( t == num[mid] ){
return 1;
}else if( t > num[mid] ){
left = mid+1;
}else {
right = mid-1;
}
}
return 0;
}
int main(){
int a[1000000];
int m,n;
int target;
while( scanf("%d%d",&m,&n) != EOF ){
scanf("%d",&target);
for( int i=0;i<m;i++){
for( int j=0;j<n;j++){
scanf("%d",&a[n*i+j]);
}
}
if( binary_search(a,target,0,m*n-1) ){
printf("Yes
");
}else{
printf("No
");
}
}
return 0;
}