if a b/1-ab b b c/1-bc
int a 1 b c b a/3-1 if a b else c b, if a 1/a b 1/b c 1/c, if a 1 b 1 a 1 & b 1, if a b then a bc, if a b and b c then, if a 1&b 1, if a+b+c 1 ab+bc+ca 2, if a b+1, if a+b+c 1 ab+bc+ca 2 abc 3, if a +b+c 4 and ab+bc+ca 6, if a+b+c 5 and ab+bc+ca 10
if a b/1-ab b b c/1-bc. There are any references about if a b/1-ab b b c/1-bc in here. you can look below.
int a 1 b c b a/3-1 if a b else c b
if a 1/a b 1/b c 1/c
if a 1 b 1 a 1 & b 1
if a b then a bc
if a b and b c then
if a 1&b 1
if a+b+c 1 ab+bc+ca 2
if a b+1
if a+b+c 1 ab+bc+ca 2 abc 3
if a +b+c 4 and ab+bc+ca 6
if a+b+c 5 and ab+bc+ca 10
int a 1 b c b a/3-1 if a b else c b, if a 1/a b 1/b c 1/c, if a 1 b 1 a 1 & b 1, if a b then a bc, if a b and b c then, if a 1&b 1, if a+b+c 1 ab+bc+ca 2, if a b+1, if a+b+c 1 ab+bc+ca 2 abc 3, if a +b+c 4 and ab+bc+ca 6, if a+b+c 5 and ab+bc+ca 10