"Okay, for the sake of your filial piety, I am also the one who led you to this point of no return, as a compensation for you, I won't ask you for any of these things, you just need to promise me, when you get to Tubo, be careful in everything, slip away if the situation is not right, don't carry it to death, understand?" Zhang Nan said.

Hearing Zhang Nan's words, Li Su was also greatly moved, except for Concubine Yang and Li Ke, no one has ever been so good to Li Su, Zhang Nan is also a teacher and a friend to Li Su.

"Master Zhang, don't worry, you don't know about me? I can save my life the most. Li Su also patted his chest and said.

Considering the various impressions that Li Su gave him, Zhang Nan also knew that Li Su would definitely not let himself suffer, so Zhang Nan also nodded.

"Don't worry, let me think about what you want to bring over, these things don't have to be valuable, but they must work, this is the most important thing, I want to think about it." After Zhang Nan finished speaking, he began to browse the mall of the system.

Zhang Nan had never been to Tubo at all, so he didn't know what the people of Tubo needed most, and it was definitely impossible for Li Su to carry a large amount of money.

Even if Li Su could distribute all the money to those ordinary people, Zhang Nan believed that those nobles would always have 10,000 ways to exploit them, and it was better not to send money than this.

However, what kind of useful things do you have to send to be able to win people's hearts, and it will not arouse the disgust of the Tibetan nobles.

"What do you say the people of Tibet want?" Zhang Nan asked while browsing the system's mall.

"Me? I think those people must be trying to eat their fill. I am not familiar with Tibet, but I have heard that in the Turkic side, as long as the snow is too heavy in winter, the population of some small tribes will drop sharply, and it is said that there is no food at all. Li Su said after a little thought.

"Is it that serious?" Zhang Nan also asked with some surprise.

Although after coming to Datang, Zhang Nan knew that food was the life of the people, but Zhang Nan really never saw people who were starved to death, especially after high-yield potatoes and other crops crossed the ocean to Datang, there were even fewer people who starved to death.

To be honest, although Zhang Nan belonged to the more aggrieved category in his later life, he had never been hungry, so he didn't know what it was like to be hungry.

Even if he came to Datang, he hadn't tasted it.

So Zhang Nan was also slightly surprised after hearing what Li Su said about the Turks.

"That's the case, these are what I heard my eldest brother say, the people of our Tang Dynasty are okay, as long as it wasn't when there was a shortage of war, as long as God gave a few thin noodles, although the people may be hungry during the winter, but they will never starve to death, but the Turks are different." Li said.

"The Turks don't know how to grow food, they can only come to rob the Tang Dynasty, those people from the big tribes are okay to say, maybe there is a chance to grab a little, but those from the small tribes can't, they have to exchange cattle, sheep and population for food, if the people of the big tribes are not willing to exchange with them, or they don't have much, those small tribes will be the same as dying in a winter."

"It's like this on the grassland, I think it's similar on that plateau, Master Zhang, you don't know, before you came to the Tang Dynasty, that is, when the emperor's grandfather was still in power, it was a common thing to starve to death, and sometimes we will be hungry." Li said.

"Really? Why am I so unconvinced? Zhang Nan said with a look of disbelief.

"It's true, at that time, the Tang Dynasty had just been founded not long ago, and the food and clothing in the palace were very tight, and if the grain harvest was not good, it would be scarce." Li Su's sincere look didn't look like he was lying at all.

Of course, Zhang Nan also believes that Li Su will not lie, after all, there is no point in lying about this kind of thing.

"It's much better now, not only is there enough food to eat, but even green vegetables can be eaten in winter, and there are high-yield things like potatoes, you can't be hungry, this is all the credit of Master Zhang." Li Su also sent Zhang Nan a sycophant in a timely manner.

On weekdays, Zhang Nan patted Li Er's ass, and now Comrade Li Er's son patted his own ass in turn, Zhang Nan was naturally used, and now Zhang Nan can also understand that the superiors like their subordinates to pat their own ass.

This feeling is just one word, cool.

Although Zhang Nan knew that this horse himself was well deserved, it always sounded a little fluttery, after all, no one would not like to listen to good words.

"Okay, for the sake of you still slapping my ass, in addition to food, I will give you some medicines that you will use daily for free, and you will use them when you get there." Zhang Nan said with a smile.

"Master Zhang, you are really the savior of the people of Tubo, fortunately the people of Tubo have you, otherwise they don't know how long they will suffer." Li Su said with a smile.

“…… Well, I'll give you some small things privately, you can use them yourself when you get there, after all, you can't live too hard in the bitter cold place. ”

"Wow, thank you, Master Zhang." Li Su's mouth was grinning at the root of his ears at this time.

"You know what the Tang army is eating when it marches now." Zhang Nan said.

"I know, what are the compressed biscuits, I've eaten them, although I feel very delicious at first, but if I eat too much, it's average, but that thing is really too full, I ate a piece, and I can't eat anything else in a day." Li said.

"I personally sponsor five cars for you, if you want the rest, you will let your father buy it, you are doing things for Datang, this money has to be paid by Datang, this public is public, private is private, your father will understand you." Zhang Nan said.

"Okay, I got it." Li Su nodded in response.

"As for the medicines, I can't give you too much, the daily use, there is a headache and brain fever, a stomach, of course, there are some medicines for frostbite, I will give you a car, and the rest is also you want again, just buy it." But I think it's your first time going, you don't need to bring too many things, you still have to come back halfway anyway. Zhang Nan said.

"Can I come back?!" Li Su was shocked, Li Su had already planned to stay in Tubo, but now Zhang Nan actually said that he could come back, how could this not shock Li Su.

"Of course you can come back, you are the conveyor of God's will, nothing to suddenly disappear for a while, can make them miss you more, and then you come back with a lot of things they urgently need, wouldn't it be more able to buy people's hearts?" Zhang Nan said with a smile.