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Problem
Read from standard input a text consisting of multiple lines. Determine and print on a single line, separated by spaces:
1. the number of lines read;
2. the number of words (a word is a maximal sequence of English letters `a-z` or `A-Z`);
3. the total number of letters in the text.
Digits and punctuation are not letters and cannot be part of a word.
**Data is read from standard input** (in the format described), not from a file. Reading proceeds line by line until end of input.
Input format
Input
input.txt
The program reads from standard input multiple lines of text. Each line has at most `4000` characters. - the number of lines is between `1` and `100` - each line has at most `4000` characters - whitespace (space, tab) and punctuation separate words
Output format
Output
output.txt
The program prints to standard output three non-negative integers separated by spaces: the number of lines, the number of words, and the total number of letters.
Example
input
Salut lume Acesta este un test
output
2 6 25
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Sample cases (from the problem)
Sample Case 1
Input
Salut lume Acesta este un test
Expected output
2 6 25
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