1374A.cpp

#include<iostream>
#include<vector>
#include<string>
#include<cstring>
#include<stack>
#include<queue>
#include<cstdio>
#include<set>
#include<unordered_set>
#include<cmath>
#include<algorithm>
#include<functional>
#include<utility>
#include<cstdlib>
using namespace std;
typedef long long int lli;
typedef size_t idx;
#define vi vector<int>
#define pb(n) push_back(n)
#define ln "\n"
#define sp ends
#define newline cout << ln
#define fastios ios_base::sync_with_stdio(false); cin.tie(0)


int main(){
	int t, x, y, n;
	cin >> t;
	while(t--){
		cin >> x >> y >> n;
		int temp = (n - y) / x;
		temp = (temp * x) + y;
		cout << temp << ln;
	}
	return 0;
}