void __attribute__((__interrupt__, auto_psv)) _DefaultInterrupt(void) 
{
    if(IFS0bits.T3IF)
{
    IFS0bits.T3IF = 0;
    //Do some operation
    }
if(IFS1bits.T4IF)
{
    IFS1bits.T4IF = 0;
    //Do some operation
    }
}