import math a = int(input()) if a==1 : print('I love Luogu!') elif a==2 : print(6, 4) elif a==3 : print(3) print(12) print(2) elif a==4 : print(166.667) elif a==5 : print(15) elif a==6 : print('%.4f' % math.sqrt(6 ** 2 + 9 ** 2)) elif a==7 : print(110) print(90) print(0) elif a==8 : print('%.4f\n%.4f\n%.4f' % (10 * math.pi, 25 * math.pi, 1000 * math.pi / 3)) elif a==9 : print(22) elif a==10 : print(9) elif a==11 : print(33.3333) elif a==12 : print(13) print('R') elif a==13 : print(int(4/3 * math.pi * (4 ** 3 + 5 ** 3))) elif a==14 : print(50)