13 < 17: true
17 < 17: false
19 < 17: false
13 > 17: false
17 > 17: false
19 > 17: true
13 == 17: false
17 == 17: true
19 == 17: false
13 <= 17: true
17 <= 17: true
19 <= 17: false
13 >= 17: false
17 >= 17: true
19 >= 17: true
13 != 17: true
17 != 17: false
19 != 17: true