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- #include <bits/stdc++.h>
- using namespace std;
- typedef long long LL;
- typedef long double LD;
- typedef unsigned long long ULL;
- typedef vector<int> VI;
- typedef set<int> SI;
- typedef pair<int, int> PII;
- typedef pair<LL, LL> PLL;
- typedef vector<PII> VPII;
- typedef vector<PLL> VPLL;
- const int INF = 1000000001;
- const LD EPS = 1e-9;
- const int MOD = 1000000007;
- const LL LLINF = 1000000000000000001;
- //813437586
- #define FOR(i, b, e) for(int i = b; i <= e; i++)
- #define FORD(i, b, e) for(int i = b; i >= e; i--)
- #define ALL(c) (c).begin(), (c).end()
- #define SIZE(x) ((int)(x).size())
- #define DPRINT(x) cout << #x << ": " << x << endl
- #define BOOST ios_base::sync_with_stdio(false); cin.tie(0)
- #define MP make_pair
- #define PB push_back
- #define ST first
- #define ND second
- #define GGL(x) "Case #" << x << ": "
- /*************************** END OF TEMPLATE ***************************/
- int main()
- {
- BOOST;
- cout << "1\n100000\n";
- FOR(i, 2, 100000)
- cout << "1 " << i << endl;
- }
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