diff --git a/Project1 - printf/hello.c b/Project1 - printf/hello.c
index aefbe1fc4783689d363b362c1513c149d874ede5..ba31396a2004792d9f90d67d7c6209c17a7adf38 100644
--- a/Project1 - printf/hello.c	
+++ b/Project1 - printf/hello.c	
@@ -1,12 +1,12 @@
-#include <stdio.h>
-
-int main()
-{
-    int a;
-    fscanf(stdin, "%d", &a);
-    if(a > 0)
-	fprintf(stderr, "Error: It is positive.\n");
-    else
-	fprintf(stderr, "Error: It is negative.\n");
-    fprintf(stdout, "Hello, World %-10d\n", a);
-}
+#include <stdio.h>
+
+int main()
+{
+    int a;
+    fscanf(stdin, "%d", &a);
+    if(a > 0)
+	fprintf(stderr, "Error: It is positive.\n");
+    else
+	fprintf(stderr, "Error: It is negative.\n");
+    fprintf(stdout, "Hello, World %-10d\n", a);
+}
diff --git a/Project1 - printf/input_data b/Project1 - printf/input_data
index 08839f6bb296e888d311d8ea2f35f7ff82dd3f2d..7f4cae55f16167a159aba6ae626d92a172aa7932 100644
--- a/Project1 - printf/input_data	
+++ b/Project1 - printf/input_data	
@@ -1 +1 @@
-200
+200
diff --git a/Project1 - printf/output_data b/Project1 - printf/output_data
index 4d6b988819ba436af54cea6e49d6f871cea244a9..8e5c5d3f9ace91540e4bf876b78eb887b0429196 100644
--- a/Project1 - printf/output_data	
+++ b/Project1 - printf/output_data	
@@ -1 +1 @@
-Hello, World 200       
+Hello, World 200       
diff --git a/Project1 - printf/stderr.txt b/Project1 - printf/stderr.txt
index 2864cf698a16205b3d5b1292ca92b51c6c7752fd..eb014022276ce5deefea809ea26ba9000dca95e0 100644
--- a/Project1 - printf/stderr.txt	
+++ b/Project1 - printf/stderr.txt	
@@ -1 +1 @@
-Error: It is positive.
+Error: It is positive.
diff --git a/Project1 - printf/stdout.txt b/Project1 - printf/stdout.txt
index 5acd122c2a122cb0b374743c907a702cac22cd2a..2d57a8348278b29a20d3261080299e1ae272e631 100644
--- a/Project1 - printf/stdout.txt	
+++ b/Project1 - printf/stdout.txt	
@@ -1 +1 @@
-Hello, World 2000      
+Hello, World 2000