diff --git a/du6/program.c b/du6/program.c
new file mode 100644
index 0000000..518d969
--- /dev/null
+++ b/du6/program.c
@@ -0,0 +1,101 @@
+/******************************************************************************
+
+Welcome to GDB Online.
+GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
+C#, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
+Code, Compile, Run and Debug online from anywhere in world.
+
+*******************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#define fullSIZE = 1000
+#define wSIZE = 100
+#include <string.h>
+
+int main()
+{
+    int SIZE = 0;
+    if(!(scanf("%d", &SIZE))){
+        printf("Nespravny vstup\n");
+        return 0;
+    }
+    if(SIZE < 1){
+        printf("Nespravny vstup\n");
+        return 0;
+    }
+    int pm = 0;
+    char** pole_smernikov = malloc(fullSIZE * sizeof(char));
+    char* success[SIZE];
+    char* unsuccess[SIZE];
+    //memset(pole_smernikov,0,SIZE*sizeof(char*));
+    int k = 0;
+    char* line = malloc(wSIZE * sizeof(char));
+    memset(line,0,SIZE);
+    char* r;
+    int q = 0;
+    int pocet_znakov = 0;
+    while (fgets(line,SIZE,stdin)) {
+            pocet_znakov = strlen(line);
+            char* all = malloc(pocet_znakov);
+            memcpy(all, line, pocet_znakov);
+            for(int x = 0; x < pm; x++){
+                if(memcmp(pole_smernikov[x], line, pocet_znakov) == 0){
+                    k++;
+                }
+                pole_smernikov[k] = line;
+            }
+            if(0 == k){
+                pole_smernikov[pm] = all;
+                pm++;
+            }
+    }
+    k = 0;
+    int i = 0;
+        while (i < pm){
+            for(int j = 0+1; j < pm-i; j++){
+                if(0 < strcmp(pole_smernikov[j-1], pole_smernikov[j])){
+                    char* temp = pole_smernikov[j];
+                    pole_smernikov[j] = pole_smernikov[j - 1];
+                    pole_smernikov[j-1] = temp;
+                }
+            }
+            // if (memcmp(pole_smernikov[i],line,pocet_znakov)){
+            //     // Nasiel som
+            //     unsuccess[k] = pole_smernikov[i];
+            //     printf("%s\n", unsuccess[k]);
+            // } else{
+            //     success[q] = pole_smernikov[i];
+            //     printf("%s\n", success[q]);
+
+            // }
+            i++;
+        }
+        if(NULL == pole_smernikov[1]){
+            puts("Ziadne prihlasky");
+            return 0;
+        }
+        puts("Prijati studenti:");
+        for(int i = 0; i < SIZE; i++){
+            if(pole_smernikov[i] == NULL){
+                break;
+            } else{
+                printf("%s\n", pole_smernikov[i]);
+            }
+            free(pole_smernikov[i]);
+        }
+        int rra = -1;
+        pm = pm + rra;
+        if(0 > (SIZE - pm)){
+            puts("Neprijati studenti:");
+            for(int i = SIZE+1; i<pm+1; i++){
+                printf("%s\n", pole_smernikov[i]);
+                
+                free(pole_smernikov[i]);
+            }
+        }
+        free(pole_smernikov);
+
+    return 0;
+}
+