#-------------------------------------------------------------------------------
# Name:        module1
# Purpose:
#
# Author:      Doru
#
# Created:     30/04/2015
# Copyright:   (c) Doru 2015
# Licence:     <your licence>
#-------------------------------------------------------------------------------

def swap(a,i,j):
    aux = a[i][i]
    a[i][i] = a[i][j]
    a[i][j] = aux


def main():
    import sys
    a = [[0 for x in range(100)] for x in range(100)]
    n = int(sys.stdin.readline())

    i = 0
    for i in range (n):
        line = sys.stdin.readline()
        numbers = line.split(" ")
        j = 0
        for j in range(n):
            a[i][j] = int(numbers[j])

        j = 0
        ma = -2000000000
        pozma = -1
        for j in range(n):
            if a[i][j] > ma:
                ma = a[i][j]
                pozma = j;

        swap(a,i,pozma)
        j = 0
        for j in range(n):
            sys.stdout.write("%d " % a[i][j])
        sys.stdout.write("\n")

if __name__ == '__main__':
    main()