diff --git a/fibbonacci series b/fibbonacci series
new file mode 100644
index 0000000..22ec6c9
--- /dev/null
+++ b/fibbonacci series	
@@ -0,0 +1,19 @@
+n=int(input("enter your no: entries: "))
+def fibonacci(n): 
+	a = 0
+	b = 1
+	if n < 0: 
+		print("Incorrect input") 
+	elif n == 0: 
+		return a 
+	elif n == 1: 
+		return b 
+	else: 
+		for i in range(2,n+1): 
+			c = a + b 
+			a = b 
+			b = c 
+		return b 
+
+
+print(fibonacci(n))