1.1*11*1.1-1.1*1.1-1.1 = 1.1*1.1*(11-1)-1.1=1.1*1.1*10-1.1=1.1*11-1.1=1.1*(11-1)=1.1*10=11
0
1.1*11*1.1-1.1*1.1-1.1 = 1.1*1.1*(11-1)-1.1=1.1*1.1*10-1.1=1.1*11-1.1=1.1*(11-1)=1.1*10=11