#include <stdio.h>
#include <stdlib.h>

    /*Adds up a sequence of integers and writes the total*/
    
    int main() {
        int Next, Total;
        
            /*Initialisation*/
            
        scanf("%d",&Next);
        Total = 0;
        
            /*Loop*/
            
        while (Next != -1) {
            Total = Total + Next;
            scanf("%d",&Next);
        }    /* end loop statement */
        
        printf("The total is %d\n", Total);
        return EXIT_SUCCESS;
    }