I could not print the plus sign enclosed in quotation marks.
Tried the following:
print("String Concatenation is done with the "+" sign.")
print("String Concatenation is done with the '"+"' sign.")
print("String Concatenation is done with the "\"+\"" sign.")
print("String Concatenation is done with the "\"+"\" sign.")
print("String Concatenation is done with the """ "+" """ sign.")