In this task your given two statements in Indonesian. You must judge whether the second sentence is the cause or effect of the first one. Label the instances as "cause" or "effect" based on your judgment. The sentences are separated by a newline character.

Input: Consider Input: Saya masukkan surat itu di kotak surat.
Surat itu di kirim oleh kantor pos.

Output: effect


Input: Consider Input: Baut itu mengencang.
Saya putar kunci pas itu.

Output: cause


Input: Consider Input: Bocah itu belajar sepanjang malam.
Dia lulus ujiannya.


Output: effect