var grade =33 ;

if(grade<=100 && grade>=90)
    console.log('pass with A+ grade')

 else if(grade<=90 && grade>=80)
    console.log('pass with A grade')

 else if(grade<=80&& grade>=70)
    console.log('pass with B grade')

 else if(grade<=70 && grade>=60)
    console.log('pass with c grade')
 
 else if (grade>=33)
 console.log('pass in exam')
 
 else if (grade<=25)
 console.log('totally failed')

 else
    console.log('supply in exam:')