Z has 5 rows and 7 columns.


Print out row by row: 
   44     0     0     0    43     0    42 
    0     0     0    45    46     0    54 
    0    48     0     0     0    50     0 
   51     0     0    56     0    49     0 
   52     0     0     0    55     0    47 

Print out column by column: 
   44     0     0    51    52 
    0     0    48     0     0 
    0     0     0     0     0 
    0    45     0    56     0 
   43    46     0     0    55 
    0     0    50    49     0 
   42    54     0     0    47