You need to switch the cipher back to plaintext based on the one-time pads.
one-time pads: TREASURES
This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.We have the following relationship between plaintext and OTP key/ciphertext.
P1P2P3P4P5P6P7P8P9 + TREASURES=MWSEMMGTI
Then we can find each plaintext character like below, using the fact that we work modulo 26, where A=1, …, Z=26....