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Cod sursa(job #742209)
#include<fstream>
using namespace std;
ifstream f("multimi2.in");
ofstream g("multimi2.out");
long long i,n,v[1000001];
long long s,a,b;
int main(void)
{f>>n;
s=(n*(n+1))/2;
a=s/2;
b=s-a;
g<<b-a<<'\n';
i=n;
while(b-i>=0)
{v[i]=1;
v[0]++;
b=b-i;
--i;
}
if(b>0)
v[b]=1,v[0]++;
g<<v[0]<<'\n';
for(i=1;i<=n;++i)
if(v[i]==1)
g<<i<<' ';
g<<'\n'<<n-v[0]<<'\n';
for(i=1;i<=n;++i)
if(!v[i])
g<<i<<' ';
}