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#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(){
    unsigned  int n;
    unsigned int t;
    char *cards;

    scanf("%u %u\n", &n, &t);
    size_t cards_amount = 2<<n;
    cards = (char *)malloc(cards_amount * sizeof(char));

    unsigned int end = getline(&cards, &cards_amount, stdin);
    if(cards[end - 1] == '\n'){
        cards[end - 1] = '\0';
        end--;
    }
    unsigned int start = end - 1;
    if(t % 2 == 0){
        puts(cards);
    } else{
        while(1){
            while(cards[start] != ' ' && start != 0){
                start--;
            }
            if(start == 0){
                printf("%.*s", end, cards);
                break;
            }
            printf("%.*s ", end-start-1, cards+start+1);
            end = start;
            start--;
        }
    }
    return 0;
}