diff --git a/sk4/program.c b/sk4/program.c
index 51c55da..f37978d 100644
--- a/sk4/program.c
+++ b/sk4/program.c
@@ -20,9 +20,9 @@ void interpret(char* input) {
             ++*ptr;
         } else if (current_char == 'DEK') {//-
             --*ptr;
-        } else if (current_char == '.' ) {//
+        } else if (current_char == 'PUK' ) {//.
             putchar(*ptr);
-        } else if (current_char == ',') {//
+        } else if (current_char == 'KUK') {//,
             *ptr = getchar();
         } else if (current_char == '[') {//
             continue;
diff --git a/sk4/program.exe b/sk4/program.exe
new file mode 100644
index 0000000..47aa69b
Binary files /dev/null and b/sk4/program.exe differ