--[[
x+p=b
y+p=s
x+y+p=c
p = c - x - y = c - (b-p) - (s-p) = c-b+p-s+p = 2p+c-b-s
p = b+s-c

]]
local read, p = io.read, print;
for _ = 1, read'n' do
    local b,s,c = read('n','n','n');
    p(b+s-c)
end