fast io
#include <bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
return 0;
}fast io
#include <bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
return 0;
}fast io
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL);fastinput c++
void fastInput(int &x)
{
bool neg=false;
register int c;
x =0;
c=getchar();
if(c=='-')
{
neg = true;
c=getchar();
}
for(;(c>47 && c<58);c=getchar())
//bit shifting is faster than other operation
//here code below is same as
//x = x*10 + c-48
x = (x<<1) + (x<<3) +c -48;
if(neg)
x *=-1;
}Copyright © 2021 Codeinu
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