#include<stdio.h>
#include<stdlib.h>
int main(){
    int m,n,x, valid =1;
    if ( scanf("%d %d",&m,&n)!=2 || m<1 || m>1000 || n<1 || n>1000 )
    {
        printf("Invalid input\n");
    }
    int arr[m][n];
    invalid = 0;
    
    for (int i=0; i<m; i++){
        for (int j=0; j<n, j++){
            if (scanf("%d",&arr[i][j]) !=1 || arr[i][j] <-10000 || arr[i][j]>10000)
            {
                invalid=1;
            }
        }
    }
    if (invalid){
        printf("Invalid input\n");
        }
        for (int i=0; i<m; i++){
            for (int j=0; j<n; j++){
                if (arr[i][j] %2 == 0)
                printf("%d",arr[i][j]);
                if ( j!=n-1 )
                printf(" ");
            }
            printf("\n")
        }

}