diff --git a/cv3/program.c b/cv3/program.c
new file mode 100644
index 0000000..b991043
--- /dev/null
+++ b/cv3/program.c
@@ -0,0 +1,62 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define LINESIZE 100
+
+struct kalkulacka{
+    float cislo; };
+
+int main() {
+    struct kalkulacka number[LINESIZE];
+    memset(number, 0, sizeof(struct kalkulacka) * LINESIZE);
+    char line[LINESIZE];
+    size_t velkost;
+    memset(line, 0, LINESIZE);
+    int a = 0;
+    int i;
+    int input = 0;
+    float p;
+    //float prvy, druhy, vys;
+    while (fgets(line, LINESIZE, stdin)) {
+        velkost = strlen(line);
+        if (velkost == 1 && line[velkost - 1] == '\n') {
+            break;
+        }
+        if (input >= 10){
+            printf("no input");
+            break;
+        }
+        if (line[0] == '+' || line[0] == '-' || line[0] == '*' || line[0] == '/') {
+            input =+ 2;
+            if (line[0] == '+') {
+                number[a - 2].cislo = number[a - 2].cislo + number[a - 1].cislo;
+                a--;
+            }
+            if (line[0] == '-') {
+                number[a - 2].cislo = number[a - 2].cislo - number[a - 1].cislo;
+                a--;
+            }
+            if (line[0] == '*') {
+                number[a - 2].cislo = number[a - 2].cislo * number[a - 1].cislo;
+                a--;
+            }
+            if (line[0] == '/') {
+                number[a - 2].cislo = number[a - 2].cislo / number[a - 1].cislo;
+                a--;
+            }
+        }
+        else {
+            p = atof(line);
+            number[a].cislo = p;
+            a++;
+            input++;
+        }
+
+        for (i = 0; i < a; i++){
+            printf("%f ", number[i].cislo);
+        }
+        printf("\n");
+    }
+    return 0;
+}
\ No newline at end of file