Often during the execution of a program, it is necessary to bring back some text strings (output) on the console. You have already seen that the print() function is used to correctly report a string or a variable.
Perhaps the most used operation on strings is the concatenation of two or more strings. In other words, it is often necessary to combine several strings to form longer sentences.
You have already seen this between integers and floats. In fact the whole numbers were implicitly converted into float by the interpreter and then carried out the operation. In this case we speak of implicit conversions. In reality it is advisable (as long as we can realize this) to always specify type conversions, so as to avoid sometimes unwanted results.
he variables are practically unavoidable in programming and are used to store values in order to be used later.