a = input().split(' ') print(round(float(a[0])/int(a[1]),3)) print(int(a[1])*2)

a = input() b=2 for i in range(1,6,2): for j in range(b): print(' ',end='') for k in range(i): print(a,end='') print() b-=1

a = input() a1 = a.split(',') for i in a1: st = [0, 0, 0] i1 = False i2 = True if 6 1 and i1 and i2: print(i)

n = int(input()) k = int(input()) a = '' b = 0 for i in range(1,n+1): a = a+str(i) for i in a: if i==str(k): b+=1 print(b)

n=int(input()) a = 0 for i in range(1,n+1): for j in range(n,i-1,-1): a+=1 if a//10==0: print('0'+str(a),end='') else: print(a,end='') print('')