(4-3)*2 -1 =1
(4-3)* 2 *1 =2
4*( 3 -2)- 1 =3
4 *(3 -2)* 1 =4
(4 +3)- 2* 1 =5
4 *3 /2 /1 =6
4 *3 /2 +1 =7
4 +3 +2 -1 =8
4 +3 +2 *1 =9
4 +3+ 2 +1 =10
4 +3 *2 +1 =11
4 *3*( 2- 1) =12
4 *3+ 2 -1 =13
(4-3)*(2-1)=1
4-3+2-1=2
4-3+2*1=3
4+3-2-1=4
4+3-2*1=5
4*3/2*1=6
4+3*(2-1)=7
4+3+2-1=8
4+3+2*1=9
4+3+2+1=10
4*3-2+1=11
4*3*(2-1)=12
4*3+2-1=13
(4-3)*(2-1)=1
4-3+2-1=2
(4-3)*2+1=3
4-3+2+1=4
4*3/2-1=5
4*3/2*1=6
4*3*2+1=7
4+3+2-1=8
4+3+2*1=9
4+3+2+1=10
4*3-2+1=11
4*3*(2-1)=12
4*3+2-1=13
4*3+2*1=14
4*3+2+1=15
4-3+2-1=2
4-3+(2/1)=3
4+3-2-1=4
4*3/2-1=5