import sys


R = 0
for i,l in enumerate(sys.stdin.readlines()):
    _, l = l[:-1].split(':')
    tirages = l.split(';')
    m_red = m_green = m_blue = 0
    for tirage in tirages:
        cubes = tirage.split(',')
        for cube in cubes:
            _, q, c = cube.split(' ')
            q = int(q)
            if c == 'red':
                m_red = max(m_red, q)
            if c == 'green':
                m_green = max(m_green, q)
            if c == 'blue':
                m_blue = max(m_blue, q)
    p = m_red * m_green* m_blue 
    R += p
print(R)