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#include <fstream>
using namespace std;
int v[100003];
int main ()
{
ifstream fin ("arbint.in");
ofstream fout ("arbint.out");
int n,m,u=0;
fin>>n>>m;
int a,b,c;
for (int i=1;i<n;++i)
{
fin>>v[i];
}
for (int i=1;i<m;++i)
{
fin>>a>>b>>c;
if (a==0)
{
for (int j=b;j<=c;++j)
{
if (u<v[j])
{
u=v[j];
}
}
fout<<u;
}
if (a==1)
{
u=v[b];
v[b]-v[c];
v[c]=u;
}
u=0;
}
}