function to calculate the cumulative sum from a [ i ] to a [ j ]
def sum ( a , i , j ) : NEW_LINE INDENT ans = 0 NEW_LINE for m in range ( i , j + 1 ) : NEW_LINE INDENT ans = ( ans + a [ m ] ) % 100 NEW_LINE DEDENT return ans NEW_LINE DEDENT def solve ( a , i , j ) : NEW_LINE