#include the Numpy Library
import numpy as np

#define the main() function
def main():

	i=0					 			#declare i, initialize to 0
	x=119.0				 			#declare a float x
	
	for i in range(120): 			#loop i from 0 to 119 inclusiveness
		if((i%2)==0):    			#if i is even
			x += 3	     			#add 3 to x -- x = x +3
		else:			 			#if i is odd
			x -= 5		 			#subtract 5 from x
			
	s = "%3.2e" % x	 	 			#makes a string x containing the value of x in sci 
						 			#notation with 2 decimal places showing
	
	print(s)			 			#print s to the screen
	
#now the rest of the program continues

if __name__ == "__main__":				#call main
	
	main() 							#run the main function
	