import java.util.Scanner;
 
 
class Ideone
{
	public static void main (String[] args) 
	{
Scanner in=new Scanner(System.in);
int a[][]=new int[3][3];
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
a[i][j]=in.nextInt();
System.out.print(a[i][j]+" ");
}
System.out.println();
}
for(int i=0;i<3;i++)
for(int j=0;j<3;j++)
if(i>j){
if (a[i][j]==0){
System.out.print("given matrix is upper triangular");
}
else
System.out.print("given matrix is lower triangular");
}
 
		// your code goes here
	}
}

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MQoyCjMKNAo1CjYKNwo4Cjk=

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