hack数据

#include <algorithm>
#include <iostream>
#include <cstring>
#include <cstdio>
#include <cmath>

using namespace std;

template <typename T> void read(T& x)
{
	x = 0; char c = getchar(); bool f = 0;
	while(!isdigit(c) && c!='-') c = getchar();
	if(c == '-') f = 1, c = getchar();
	while(isdigit(c)) x = x*10+c-'0', c = getchar();
	if(f) x = -x;
}

int n = 50000, q = 200000;

int main()
{
	for(int i=1; i<=n; i++) putchar('a');
	for(int i=1; i<=n; i++) putchar('b');
	for(int i=1; i<=n; i++) putchar('a');
	putchar('\n');
	printf("%d\n", q);
	for(int i=1; i<=q; i++) printf("%d %d\n", 1, n*3);
	return 0;
}