guitunes % part1
coll1: 1 2 3 4 5 6 7 8 9
coll2: 1 2 3 4 5 6 7 8 9
 
coll1: 8 2 6 4 5 3 7 1 9
first odd element: 5
coll2: 2 4 6 8 1 3 5 7 9
first odd element: 1
guitunes %
