import java.util.*;
class Ideone
{
static int sumOfDigits( int N ){
int sum = 0;
while( N>0 ){
int digit = N%10;
sum = sum+digit;
N = N/10;
}return sum;
}
{
int result = sumOfDigits( 135 );
System.
out.
println("135sum of digit :"+result
); }
}
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