calculator

calcu.py

 n1=int(input("enter the first number"))
-n2=int(input("enter the second number\n"))
-print("1.ADD\n2.SUB\n3.MUL\n4.DIV\n")
+n2=int(input("enter the second number"))
+print("\n")
+def add(n1,n2):
+    return n1+n2
+def sub(n1,n2):
+    return n1-n2
+def mul(n1,n2):
+    return n1*n2
+def div(n1,n2):
+    return n1/n2
+print("sum=",add(n1,n2))
+print("sub=",sub(n1,n2))
+print("mul=",mul(n1,n2))
+print("div=",div(n1,n2))
+
+