시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 388 253 227 68.580%

## 문제

줄의 개수를 세는 프로그램을 작성하시오.

## 입력

한 줄에 최대 100글자씩 주어진다. 빈 줄이 주어질 수도 있다.

## 출력

입력으로 몇 줄이 주어졌는지를 출력한다.

## 예제 입력 1

one
and two
three


## 예제 출력 1

3


## 힌트

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