printing - How to print without having newline added automatically at the end?

Print["first part of the result", DateString[]]   
Print["addition to the result", DateString[]]

will add a newline character at the end of line automatically for each Print[]. But I'd like the two strings to be shown on the same line. How can I do this?

Answer

For Example:

WriteString["stdout", "First part of the result: ", DateString[]];
(*Perform some calc*)
i = 0;
WriteString["stdout", " -- Addition to the result: ", DateString[],  "\n"];

First part of the result: Thu 15 Oct 2015 12:58:29 -- Addition to the result: Thu 15 Oct 2015 12:58:29