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| Hashmat the brave warrior | |
| Hashmat is a brave warrior who with his group of young soldiers moves from one place to another to | |
| fight against his opponents. Before Fighting he just calculates one thing, the difference between his | |
| soldier number and the opponent’s soldier number. From this difference he decides whether to fight or | |
| not. Hashmat’s soldier number is never greater than his opponent. | |
| Input | |
| The input contains two numbers in every line. These two numbers in each line denotes the number | |
| soldiers in Hashmat’s army and his opponent’s army or vice versa. The input numbers are not greater | |
| than 232. Input is terminated by ‘End of File’. | |
| Output | |
| For each line of input, print the difference of number of soldiers between Hashmat’s army and his | |
| opponent’s army. Each output should be in seperate line. | |
| Sample Input | |
| 10 12 | |
| 10 14 | |
| 100 200 | |
| Sample Output | |
| 2 | |
| 4 | |
| 100 |