#include <stdio.h>
    /*Counts ranges in a sequence of integers*/
    void main() {
        int Next, TotalTo10, TotalTo20, TotalTo30, TotalOver30;

        /*Initialisation*/
        scanf("%d",&Next);
        TotalTo10 = 0;
        TotalTo20 = 0;
        TotalTo30 = 0;
        TotalOver30 = 0;

        /*Loop*/
        while (Next != -1) {
            if (Next<=10) 
                TotalTo10 = TotalTo10 + 1;
            else if (Next<=20) 
                TotalTo20 = TotalTo20 + 1;
            else if (Next<=30) 
                TotalTo30 = TotalTo30 + 1;
            else TotalOver30 = TotalOver30 + 1;
            scanf("%d",&Next);
        }    /*Loop statement*/

        printf("The total under 11 is %d\n", TotalTo10);
        printf("The total under 21 is %d\n", TotalTo20);
        printf("The total under 31 is %d\n", TotalTo30);
        printf("The total over 30 is %d\n", TotalOver30);
    }