for(I = 0； I < = 2; i++){
for(j = 0； j & lt=2; j++){
for(k = 0； k & lt=2; k++){
If (me! = j & amp& ampj！ = k & amp& ampk！ =i){// Eliminate duplicate opponents.
If (me! = 0 & amp& ampk！ = 0 & amp& ampk！ =2){// Meet the topic conditions.
//Output A's opponent
system . out . println(" a:"+(char)(' x '+I))；
//Output B's opponent
system . out . println(" b:"+(char)(' x '+j))；
//the opponent who outputs C.
system . out . println(" c:"+(char)(' x '+k))；
}
}
}
}
}