a="jaydev"
print(a.capitalize())
print(a.upper())
print(a.islower())

b = "JAY"
print(b.lower())
print(b.isupper())

c = "hi welcome"
print(c.title())
print(c.find("wel"))
print(c.index("c"))

d = "In hi in welocme in a in"
print(d.count("In"))
print(d.count("in"))
print(d.isalpha())

f = "100"
print(f.isdigit())

e = "100.5"
print(e.isdigit())
