diff --git a/std/stdio.c b/std/stdio.c
index d1bc69a..1a4d98c 100644
--- a/std/stdio.c
+++ b/std/stdio.c
@@ -8,5 +8,5 @@ char* readln() {
 }
 
 void print(char *str) {
-   puts(str);
+   fputs(str, stdout);
 }
diff --git a/std/stdlib.c b/std/stdlib.c
index d27b36f..7e77385 100644
--- a/std/stdlib.c
+++ b/std/stdlib.c
@@ -1,13 +1,19 @@
 #include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
 
 void wait(long long x) {
     sleep(x);
 }
 
-int slen(char *str) {
-    return strlen(str);
+long long slen(char *str) {
+    return (long long) strlen(str);
 }
 
-char charAt(char *str, int) {
-    return str[int];
+char charAt(char *str, long long x) {
+    return str[x];
+}
+
+long long parse_int(char *str) {
+    return (long long) atoi(str);
 }
diff --git a/std/stdlib.sloth b/std/stdlib.sloth
index b1849e3..d7ddeff 100644
--- a/std/stdlib.sloth
+++ b/std/stdlib.sloth
@@ -2,6 +2,7 @@ foreign fn wait(x: Int) Void;
 foreign fn print(str: String) Void;
 foreign fn slen(str: String) Int;
 foreign fn charAt(str: String) Char;
+foreign fn parse_int(str: String) Int;
 
 fn termpos(x: int, y: int) Void {
     print("\x1b[");
diff --git a/std/stdmath.c b/std/stdmath.c
index c9a91c3..dad292f 100644
--- a/std/stdmath.c
+++ b/std/stdmath.c
@@ -2,10 +2,8 @@
 #include <stdlib.h>
 #include <time.h>
 
-int randGen(int min, int max) {
-   time_t t;
-   
-   srand((unsigned) time(&t));
-   
-   return rand() % (max - min + 1) + min;
+
+long long randGen(long long min, long long max) {
+   srandom((unsigned) time(NULL)); 
+   return random() % (max - min + 1) + min;
 }