#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,m,o,i;
while(scanf("%d%d",&n,&m)==2)
{
if(n==m)
{
printf("%d\n",n+1);
}
else
{
if(m<n)
{
o=m;
m=n;
n=o;
}
for(i=n; i<=m; i++)
{
printf("%d\n",i+1);
}
}
printf("\n");
}
return 0;
}
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