“Step Lively!“ shouted the guard. “Step lively you in front“. To hell with your “Step Lively“. The zecks marched with measure tread, hanging their heads as at the funeral. Now we´ve nothing to lose--we´d been the last back anyhow. Ha would´t treat us like a human beings,now let him burst himself shouting.“
The prisoners were so hopeless, careless, etc. at that moment they thought they had nothing to lose, they thought that the guards had the right to treat them like trash because of the many years Ivan Denisovich and the other ones had been in jail they stop believing in a possibility to have human rights again
“Who is the zeck main enemy. Another zeck“
This is an opinion but I think the prisoners where terrified about everyone, they learned that the only people you can believe is in yourself. Being in a gulag makes you a cold person not literary, they turn into people that are only searching for food or just for surviving, like animals and they don´t care to betray their friends they start to care only about themselves. That is why they were so careful about the next movement of their mates.