# Day 1: Will be working with data types and adding/concating items that are
# of integer, double, and string formats

i = 4
d = 4.0
s = "HackerRank "

i_2 = int(input())
d_2 = float(input())
s_2 = str(input())

print(int(i + i_2))
print("{:.1f}".format(float(d_2 + d)))
print(s + s_2)
