11855번 - Bank 서브태스크다국어

문제

N people came to some bank to get their salary of a₁, a₂, . . . , a_N tenge. There are total M banknotes left in the bank with values b₁, b₂, . . . , b_M tenge correspondently.

You need to determine whether bank is able to give exact salary to all people using given banknotes or not.

입력

First line of input file contains two integers N and M — number of people and number of banknotes. Second line contains N integers a₁, a₂, . . . , a_N (1 ≤ a_i ≤ 1000) — salary values. Third line contains M integer numbers b₁, b₂, . . . , b_M (1 ≤ b_i ≤ 1000) — values of banknotes .

출력

The output file must contain one word «YES», if bank is able to pay salary. In opposite case output «NO».

제한

서브태스크

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