diff --git a/1.c b/1.c
new file mode 100644
index 0000000000000000000000000000000000000000..1512c65984c75a8174af65a0022c1116664bfc91
--- /dev/null
+++ b/1.c
@@ -0,0 +1,12 @@
+#include<stdio.h>
+
+int main(){
+
+    printf("Hello World!\n");
+    float x;
+    printf("Podaj wartosc x\n");
+    scanf("%f",&x);
+    printf("Suma x+x=%.2f\n",x+x);
+
+    return 0;
+}