学步园

#include<stdio.h>
#include<string.h>
void swap(int &x,int &y)
{
  int temp;
 if(x<y)
 {
  temp=x;
  x=y;
  y=temp;
 }
}
int fun(int x,int y)
{   
    int a,b,r;
    a=x,b=y;
    swap(x,y);
    while(r)
    {
      r=x%y;
      x=y;
      y=r;
   } 
   return a*b/x;
}
int main( )
{
 int N,M;
 while(scanf("%d%d",&N,&M)!=EOF)
 printf("%d\n",fun(N,M));
 return 0;
}