How to Proceed with Tokenized text content which is given in number?
Using numbers for words is a very common way of representing words in a corpus. The thing that is missing here is how you have arrived at these numbers. Generally, if you have a corpus, you get these numbers by getting the index of these words in the vocabulary. For example, if you have two sentences :
1. John went to London
2. John went to London with Mary

Based on the order in which these numbers come, you can assign the following representation : 

John : 1 , went : 2, to : 3, London : 4, with : 5, Mary : 6 
Further, your sentence will be 
1. 1 2 3 4 
2. 1 2 3 4 5 6