**suppose you have two integer numbers N,X ,And (0=<N<=10**

^{3}),(1=<X<=99),If the last two digits of the input number N are less than input X, the number is rounded down for the the next greater hundred., otherwise the number is rounded up to the next smaller hundred........i just want to know to determine the last two digit of number N...is there already a function do that in c++ or something like that?