#include <stdio.h>
 
int main(void) {
	int n,m;
	scanf("%d %d",&n,&m);
	int arr[n][m];
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++) scanf("%d",&arr[i][j]);
	}
 
	for(int i=0;i<n;i++){
		if(i%2==0){
			for(int j=0,k=m-1;j<k;j++,k--){
				int temp=arr[i][j];
				arr[i][j]=arr[i][k];
				arr[i][k]=temp;
			} 
		}
		else {
			for(int j=0;j<m;j++) arr[i][j]*=5;
		}
	}
 
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++) printf("%d ",arr[i][j]);
 
		printf("\n");
	}
 
	// your code goes here
	return 0;
}
 

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