#include<stdio.h>
main(){
  int s,d,m1,m2,m3,m4;

  for(s=0;printf("New Datum ? "),scanf("%d",&d)!=EOF;){
    if(s==0){m1=d;m2=d;m3=d;m4=d;s=1;}

    else if(m1==m2)
      if(m1>d)m2=d;
      else m1=d;

    else if(m3==m4)
      if(m3>d)m4=d;
      else m3=d;

    else if(d>m1){m2=m1;m1=d;}
    else if( (m1>d) && (d>m2) )m2=d;
    else if( (m3>d) && (d>m4) )m4=d;
    else if(m4>d){m3=m4;m4=d;}
  }
  printf("\n");
  printf("m1 > %d\n",m1);
  printf("m2 > %d\n",m2);
  printf("m3 > %d\n",m3);
  printf("m4 > %d\n",m4);

}

#include <stdio.h>

int main(void)
{
    int s, d, m1, m2, m3, m4;

    for (s = 0; printf("New Datum ? "), scanf("%d", &d) == 1;) {
        if (s == 0) { m1 = d; m2 = d; m3 = d; m4 = d; s = 1; }
        else {
            if (m1 == m2)
                if (m1 > d) m2 = d;
                else m1 = d;
            if (m3 == m4)
                if (m3 > d) m4 = d;
                else m3 = d;
            if (d > m1) { m2 = m1; m1 = d; }
            else if ((m1 > d) && (d > m2)) m2 = d;
            if ((m3 > d) && (d > m4)) m4 = d;
            else if (m4 > d) { m3 = m4; m4 = d; }
        }
    }
    printf("\n" "m1 > %d\n" "m2 > %d\n" "m3 > %d\n" "m4 > %d\n",
            m1, m2, m3, m4);
    return 0;
}