O.K.
Frogs are 123 456 (they keep their respective numbers the entire time)
jump #4 frog forward
Jump #3 frog over frog in front of it
Jump #2 frog forward
Jump #4 frog over #2 frog
Jump #5 frog
Jump #6 frog
jump #3 frog
Anyway, you'll see the rest of the pattern