K = 2
students = [("여", 1), ("여", 1), ("남", 1), ("남", 2), ("여", 2)]

fe_counter = 0
male_counter = 0
male = 0
female = 0

for gender in students:
    if gender == "남":
        male += 1
    else:
        female += 1

while male >= 2:
    male_counter += 1

while female >= 2:
    fe_counter += 1


print(male_counter + fe_counter)
# print((male - (male % K)) + (female - (female % K)))