Objective
Today, we’re discussing data types. Check out the Tutorial tab for learning materials and an instructional video!

Task
Complete the code in the editor below. The variables i, d,  and s are already declared and initialized for you. You must:

  1. Declare 3 variables: one of type int, one of type double, and one of type String.
  2. Read 3 lines of input from stdin (according to the sequence given in the Input Formatsection below) and initialize your 3 variables.
  3. Use the + operator to perform the following operations:
    1. Print the sum of i plus your int variable on a new line.
    2. Print the sum of d plus your double variable to a scale of one decimal place on a new line.
    3. Concatenate s with the string you read as input and print the result on a new line.

Note: If you are using a language that doesn’t support using + for string concatenation (e.g.: C), you can just print one variable immediately following the other on the same line. The string provided in your editor must be printed first, immediately followed by the string you read as input.

Input Format

The first line contains an integer that you must sum with i.
The second line contains a double that you must sum with d.
The third line contains a string that you must concatenate with s.

Output Format

Print the sum of both integers on the first line, the sum of both doubles (scaled to  decimal 1 place) on the second line, and then the two concatenated strings on the third line.

Sample Input

12

4.0

is the best place to learn and practice coding!

Sample Output

16

8.0

HackerRank is the best place to learn and practice coding!

Solution:

i = 4 #given
d = 4.0 #given
s = 'HackerRank ' #given
i2 = int(input()) # read int</pre>
d2 = float(input()) # read double
s2 = input() # read string
# print summed and concatenated values
print(i + i2)
print(d + d2)
print(s + s2)
<pre>
Code for Day 1 HackerRank 30 Days of Code Challenge.

Here we have taken three input i2, d2, s2. Variable i2 is of data type int (short for integer), d2 is of data type float and s2 is of data type string. As we have already discussed in previous tutorial, input is always of string data type. So to convert input values to integer and decimal data type we have use ‘int()’ and ‘float()’ function.

Once the input data is converted we have used subsequent print command to generate output. The integer and float values add by the ‘+’ operator while the string value concatenate by ‘+’ operator. Thus we can also see that for different datatype same operator have different operations. To learn more about strings and concatenation visit here.

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