0:00:04.319,0:00:07.919 this exercise has 0:00:05.759,0:00:10.080 asked us to determine the difference 0:00:07.919,0:00:11.519 between the two hashes that we see in 0:00:10.080,0:00:14.719 this code 0:00:11.519,0:00:16.560 my hash is initialized on line two 0:00:14.719,0:00:18.720 and you can see that there's a colon 0:00:16.560,0:00:22.240 after the x 0:00:18.720,0:00:22.800 the key in this hash is a symbol on line 0:00:22.240,0:00:26.160 3 0:00:22.800,0:00:29.439 we also see an x but in this case 0:00:26.160,0:00:32.399 x is not a symbol x is the local 0:00:29.439,0:00:34.640 variable that we initialized on line 1. 0:00:32.399,0:00:35.760 this variable references the string hi 0:00:34.640,0:00:38.879 there 0:00:35.760,0:00:45.840 now to see the difference let's print 0:00:38.879,0:00:45.840 both of these hashes 0:00:50.160,0:00:54.800 when we print these two hashes with p we 0:00:52.800,0:00:56.160 can see the symbol that is the key of 0:00:54.800,0:00:58.399 the first hash 0:00:56.160,0:00:59.359 and in the second hash we see the string 0:00:58.399,0:01:02.559 high there 0:00:59.359,0:01:04.799 as the key and again this is because 0:01:02.559,0:01:08.000 when we initialized the second hash 0:01:04.799,0:01:10.960 on line three we use the local variable 0:01:08.000,0:01:13.840 x as the key which references the string 0:01:10.960,0:01:13.840 hi there