There’s a nice pond near to Red Gate HQ, and now that it’s spring, the place is full of life. The frogs in the pond are the most active, and constantly annoy the old Toad with their agility. The frogs’ latest trick is to form a line of 8, and then leap over each other to end up in 4 stacks of 2 frogs after only 4 jumps. To make this trick a bit more difficult, the 4 frogs that jump always leap over 2 other frogs (horizontally). Please see the picture below.

Can you work out which frogs jump and in which order? Please leave your answer as a sequence of numbers in the comments box e.g. 1234.

Tip: 8 coins will help you!