prepare (1/3): 
finished

make (2/3): 
g++ -std=c++11 -Wall -g -c main.cpp
g++ -std=c++11 -Wall -g -c p5.cpp
g++ -std=c++11 -Wall -g -o main main.o p5.o
finished

clean (3/3): 
finished

all task finished, build successfully