RAFT to POOP.

Every letter change

1. RAFT → HAFT: change letter 1 from R to H.
2. HAFT → HALT: change letter 3 from F to L.
3. HALT → HOLT: change letter 2 from A to O.
4. HOLT → HOOT: change letter 3 from L to O.
5. HOOT → HOOP: change letter 4 from T to P.
6. HOOP → POOP: change letter 1 from H to P.