Lehmät

import re

input = str(input())

lines = input.split("\n")
cowAmount = 0

for line in lines:
    if lines.index(line) != 0 and lines.index(line) != len(lines) - 1:
        reMatches = re.findall(r"@", line)
        cowAmount += len(reMatches)
        
print(cowAmount)

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

Test 6

Group: 2

Verdict: WRONG ANSWER

Test 7

Group: 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER