The difference between 77 and 71 is: 
The difference between 81 and 78 is: 
The difference between 73 and 71 is: 
The difference between 77 and 76 is: 
The difference between 97 and 71 is: 
The difference between 77 and 41 is: 
The difference between 83 and 77 is: 
The difference between 77 and 71 is: 