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Explore Stack Internal-3 bytes thanks to @neil!
$a++;print"\e[D$a"ifprint"\e[D$a"if($a++$a!=2); Moves the cursor backwards (does nothing on start of line) and prints the value of $a, first and third time (i.e., the third time a 1 is printed, the cursor moves, and a 3 is printed on the position of the 1).
$a++;print"\e[D$a"if($a!=2); Moves the cursor backwards (does nothing on start of line) and prints the value of $a, first and third time (i.e., the third time a 1 is printed, the cursor moves, and a 3 is printed on the position of the 1).
-3 bytes thanks to @neil!
print"\e[D$a"if(++$a!=2); Moves the cursor backwards (does nothing on start of line) and prints the value of $a, first and third time (i.e., the third time a 1 is printed, the cursor moves, and a 3 is printed on the position of the 1).