# include & ltstdio.h & gt
int main()
{
int i，j，k；
for(I = 1； I < = 3; I++)//A, X, Y and Z have three choices.
for(j = 1； j & lt=3; J++) // Choose X, Y and Z in 3 for B.
for(k = 1； k & lt=3; K++)//C, X, Y and Z have three choices.
If (me! = j & amp& ampj！ = k & me! = k & me! = 1。 & ampj！ = 1。 & ampj！ =3)
//and A, B, C opponents must be different (me! = 1 is the opponent of A, not X, J! = 1 is B's opponent, not X, J! =3 is B's opponent, not Z)
printf ("A - %c\nB - %c\nC - %c\n "，i+'X'- 1，j+'X'- 1，k+' X '- 1)；
Returns1;
}