입력: "Hello World" → 단어: 2, 문자: 11, 줄: 1
Input: "Hello World" → Words: 2, Characters: 11, Lines: 1
입력: "첫 줄\n두 줄\n세 줄" → 단어: 6, 문자: 17, 줄: 3
Input: "First line\nSecond line\nThird line" → Words: 6, Characters: 17, Lines: 3
입력: "Hello, World! How are you?" → 단어: 5, 문자: 28, 줄: 1
Input: "Hello, World! How are you?" → Words: 5, Characters: 28, Lines: 1