i = 4
d = 4.0
s = 'HackerRank '

# Declare second integer, double, and String variables.
var1 = 0
var2 = 0.0
var3 = ""
# Read and save an integer, double, and String to your variables.
var1 = int(input())
var2 = float(input())
var3 = input()
# Print the sum of both integer variables on a new line.
print(i+var1)
# Print the sum of the double variables on a new line.
print(d+var2)
# Concatenate and print the String variables on a new line
print(s+var3)
# The 's' variable above should be printed first.