Write function if the input number is 2 return 1, if the input number is 1 then return 2

CodeTest.c

int usingSubtraction(int x)
{
  return 3-x;
}

int usingDivision(int x)
{
 return 2/x;
}

int usingPercentile(int x)
{
 return (x%2)+1;
}

int usingBitwiseOperation(int x)
{
 return x^0x3; // input xor 0011
}

int usingConditional(int x)
{
 return x==2?1:2;
}