day_1_data_types.py

i = 4
d = 4.0
s = "HackerRank "
# Declare second integer, double, and String variables.
# Read and save an integer, double, and String to your variables.
int_var = int(input())
double_var = float(input())
string_var = input()
# Print the sum of both integer variables on a new line.
print(i+int_var)
# Print the sum of the double variables on a new line.
print("{:.1f}".format(d+double_var))
# Concatenate and print the String variables on a new line
# The 's' variable above should be printed first.
print(s+string_var)