Nope, it isn't possible to add a string to a numeric variable. It defies the laws of BASIC. I think I heard this earlier though, but store C as a string of another name. Or, if you don't have to do any math with the variable just initially store it as a string. You're probably using it for a high score routine right. If so, there is no need to add it to the string; just use Output(x,y,"string").