You will be given a definition of a task first, then some input of the task.
Given a sentence in the Japanese, provide an equivalent translation in Bahasa Indonesia that retains the same meaning through the translation. In translation, keep numbers as it is.

それは、1月18日以降初めての自爆テロだった。
Output:
Itu merupakan pengeboman bunuh diri pertama di Kabul sejak 18 Januari.