#!/bin/ruby

def profit(b, s, c)
   -c + b + s
end

t = gets.strip.to_i
for a0 in (0..t-1)
    b, s, c = gets.strip.split(' ')
    b = b.to_i
    s = s.to_i
    c = c.to_i
    result = profit(b, s, c)
    puts result
end