diff --git a/du1/program.c b/du1/program.c
index ccb1b4b..a04cb60 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -1,11 +1,21 @@
 #include <stdio.h>
 
-int main() {
+int main(){
 double x, a, b, c, y;
-
-if (scanf("%lf", &x) != 1) {
-    fprintf(stderr, "Error: failed to read a number for x\n");
-    return;
-}
+if (scanf("%lf", &x) != 1){
+    printf("Nepodarilo sa načítať x");
     return 0;
+} else if (scanf("%lf", &a) != 1){
+    printf("Nepodarilo sa načítať a");
+    return 0;
+} else if(scanf("%lf", &b) != 1){
+    printf("Nepodarilo sa načítať b");
+    return 0;
+} else if(scanf("%lf", &c) != 1){
+    printf("Nepodarilo sa načítať c");
+    return 0;
+}
+y = x*x*a+b*x+c;
+printf("%.2f", y);
+    return y;
 }
\ No newline at end of file