local G = 6.67e-11
local obj_mass = io.read("*l")

for _ = 1, io.read("*l") do
    local planet, radius, avg_mass = io.read("*l"):match("(%a+), (%d+), (%d+)")
    local volume   = (4.0 / 3.0) * math.pi * radius^3
    local tot_mass = avg_mass * volume
    local force    = G * obj_mass * tot_mass / radius^2
    print(planet .. ": " .. string.format("%.3f", force))
end