if divisible by 4
if ( n % 4 == 0 ) { System . out . println ( " First ▁ subset ▁ sum ▁ = ▁ " + s / 2 ) ; System . out . println ( " Second ▁ subset ▁ sum ▁ = ▁ " + s / 2 ) ; System . out . println ( " Difference ▁ = ▁ " + 0 ) ; } else {