diff --git a/dz14 b/dz14
new file mode 100644
index 0000000..902f091
--- /dev/null
+++ b/dz14
@@ -0,0 +1,76 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <math.h>
+int find_coords(char *s);
+
+double len(int x1[3], int x2[3]){
+  double l = 0;
+  for(int i = 0; i < 3; ++i){
+    l += (x1[i] - x2[i]) * (x1[i] - x2[i]);
+  }
+  return sqrt(l);
+}
+
+int main(){
+  char *s;
+  s = "file4.txt";
+  find_coords(s);
+}
+
+int find_coords(char *s){
+  FILE *f = fopen(s, "r");
+  char *r;
+  r = (char *) malloc(sizeof(char));
+  int n = 0;
+  int p = 0;
+  while(!feof(f))
+  {
+    char c;
+    fscanf(f,"%c", &c);
+    if(c == ' ') {}
+    else{r[n] = c;}
+    if(c == ';') {p++;}
+    n++;
+    r = (char *) realloc(r, sizeof(char));}
+
+  fclose(f);
+  int x[p][3];
+  int k = 0;
+  int j = 0;
+  int u = 0;
+  int t = 0;
+  for (int i = 0; i < n; i++)
+  {
+    if(r[i] == ',' && t >= 1 ){
+      x[k][j] = atoi(&r[u + 1]);
+      j++;
+      u = i;
+    }
+    if(r[i] == ',' && t < 1 ){
+      x[k][j] = atoi(&r[0]);
+      t++;
+      j++;
+      u = i;
+    }
+    if (r[i] == ';'){
+      x[k][j] = atoi(&r[u + 1]);
+      k++;
+      j = 0;
+      u = i;
+    }
+  }
+  free(r);
+  double l = 0.0;
+  k = 0; j = 0;
+  for(int i = 0; i < p - 1; i++)
+  {
+    for (int b = i + 1; b < p; b++)
+    {
+      if(len(x[i], x[b]) > l )
+      {k = i + 1; j = b + 1; l = len(x[i], x[b]);}
+    }
+  }
+  printf("Max len between %d and %d points", k, j);
+  return 1;
+}