please help i'm a begineer and don't know much

Question

I want to know why the "is and 14" are stuck together and how i can fix it.
Link: https://code.sololearn.com/cDnati5dV1v0/#cs

Answer 1

just add a space

string letter = "John is ";

Answer 2

Just add white space after is
string letter = "John is ";

Answer 3

look at the link @Ruba Kh