diff --git a/du1/.program.c.swp b/du1/.program.c.swp
new file mode 100644
index 0000000..a8c8676
Binary files /dev/null and b/du1/.program.c.swp differ
diff --git a/du1/program b/du1/program
new file mode 100755
index 0000000..3b373e3
Binary files /dev/null and b/du1/program differ
diff --git a/du1/program.c b/du1/program.c
index 53c5fdf..1e4e824 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -1 +1,22 @@
 #include <stdio.h>
+
+int main(){
+	int C = 0;
+	char Big_Wort;
+	int count = 0;
+	while(1){
+	C = getchar();
+	if(C == EOF)
+	break;
+	if(C == '\n')
+	count++;
+	if(C >= 'a' && C <= 'z')
+	C = C - 'a' + 'A';
+	else if(C >= 'A' && C <= 'Z')
+	C = C - 'A' + 'a';
+	Big_Wort = C;
+	putchar(Big_Wort);
+	}
+	printf("\nCount of lines: %d\n",count);
+	return 0;
+}