if __name__ == '__main__':
    nm = input().split()

    n = int(nm[0])

    m = int(nm[1])

    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input())
    arr.sort(key=lambda x: x[k])
    for i in range(n):
        print(*arr[i])

if __name__ == '__main__':
    nm = input().split()

    n = int(nm[0])

    m = int(nm[1])

    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input())

    arr = sorted(arr, key=lambda x: x[k])
    
    for i in arr:
        print(' '.join(str(item) for item in i))

#!/bin/python3

import math
import os
import random
import re
import sys
def change_all_attr(lst, src, dst):
    tmp =0
    tmp = lst[dst]
    lst[dst] = lst[src]
    lst[src] = tmp

if __name__ == '__main__':
    nm = input().split()

    n = int(nm[0])

    m = int(nm[1])

    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input())
    lst_table = list(zip(*arr))
    #print(lst_table)
    tmp =0
    for t in range(m):
        lst_table[t] = list(lst_table[t])

    change = False
    for i in range(len(lst_table[k]) - 1):
        for j in range(len(lst_table[k]) - 1):
            if lst_table[k][j] > lst_table[k][j+1]:
                for t in range(m):
                    change_all_attr(lst_table[t],j,j+1)
                change = True
        if not change:
            break
        
    #print(lst_table)
    lst_table = list(zip(*lst_table))
    #print(lst_table)
    for t in lst_table:
        for p in range(len(t)):
            print("%d"%(t[p]),end= " ")
        print()
                
            
        

#!/bin/python3

import math
import os
import random
import re
import sys



if __name__ == '__main__':
    n,m = map(int,input().split())
    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input())
    for info in sorted(arr,key = lambda x : x[k]):
        print(*info)