diff --git a/03_variables/types.v b/03_variables/types.v
index 3ad2009..999f8a1 100644
--- a/03_variables/types.v
+++ b/03_variables/types.v
@@ -1,4 +1,25 @@
 
+const min_i8 := i8(-128)
+const max_i8 := i8(127)
+
+const min_i16 := i16(-32768)
+const max_i16 := i16(32767)
+
+const min_i32 := i32(-2147483648)
+const max_i32 := i32(2147483647)
+
+const min_i64 := i64(-9223372036854775807 - 1)
+const max_i64 := i64(9223372036854775807)
+
+const mix_u8  := u8(0)
+const mix_u16 := u16(0)
+const mix_u32 := u32(0)
+const mix_u64 := u64(0)
+
+const max_u8  := u8(127)
+const max_u16 := u16(32767)
+const max_u32 := u32(2147483647)
+const max_u64 := u64(9223372036854775807)
 
 
 fn main() 
@@ -8,5 +29,31 @@ fn main()
 	mut flt64 := f64(3)
 	
 	println(flt32)
+	println(flt64)
 	println(integer)
+
+	println(min_i8)
+	println(max_i8)
+
+	println(min_i16)
+	println(max_i16)
+
+	println(min_i32)
+	println(max_i32)
+	
+	println(min_i64)
+	println(max_i64)
+
+	println(min_u8)
+	println(max_u8)
+
+	println(min_u16)
+	println(max_u16)
+
+	println(min_u32)
+	println(max_u32)
+	
+	println(min_u64)
+	println(max_u64)
+
 }
\ No newline at end of file