Problem:
Score : 100 points

Problem Statement

There are three airports A, B and C, and flights between each pair of airports in both directions.

A one-way flight between airports A and B takes P hours, a one-way flight between airports B and C takes Q hours, and a one-way flight between airports C and A takes R hours.

Consider a route where we start at one of the airports, fly to another airport and then fly to the other airport.

What is the minimum possible sum of the flight times?

Constraints

1 \leq P,Q,R \leq 100

All values in input are integers.

Input

Input is given from Standard Input in the following format:

P Q R

Output

Print the minimum possible sum of the flight times.

Sample Input 1

1 3 4

Sample Output 1

4

The sum of the flight times in the route A \rightarrow B \rightarrow C: 1 + 3 = 4 hours

The sum of the flight times in the route A \rightarrow C \rightarrow C: 4 + 3 = 7 hours

The sum of the flight times in the route B \rightarrow A \rightarrow C: 1 + 4 = 5 hours

The sum of the flight times in the route B \rightarrow C \rightarrow A: 3 + 4 = 7 hours

The sum of the flight times in the route C \rightarrow A \rightarrow B: 4 + 1 = 5 hours

The sum of the flight times in the route C \rightarrow B \rightarrow A: 3 + 1 = 4 hours

The minimum of these is 4 hours.

Sample Input 2

3 2 3

Sample Output 2

5

Solution in Python (3.4.3) (judge verdict: Accepted)


AIR_PORTS = ['A', 'B', 'C']


def get_input():
    PandQandR = input().split(" ")
    P = int(PandQandR[0])
    Q = int(PandQandR[1])
    R = int(PandQandR[2])
    return P, Q, R


def calc_flight_time(flight_time_list):
    min = 500
    for i, time_1 in enumerate(flight_time_list):
        for j, time_2 in enumerate(flight_time_list):
            if i == j:
                continue
            result_time = time_1 + time_2
            if min > result_time:
                min = result_time
    return min


def main():
    P, Q, R = get_input()
    flight_time_list = [P, Q, R]
    result_time = calc_flight_time(flight_time_list)
    print(result_time)


if __name__ == '__main__':
    main()