_(1)

file  = open('inf_e_20090515_m_04_igeny.txt')
n_floo= int(file.readline())
n_team= int(file.readline())
n_requ= int(file.readline())
lst   = file.readlines()
for i in range(len(lst)):
    lst[i]= lst[i].split()
    for j in range(len(lst[i])):
        lst[i][j]= int(lst[i][j])