#include <math.h>
#include <stdio.h>
#include <string.h>
int main()
{
    int strToInt(char str[]);
    char str[100];
    int num;
    while (gets(str)!=NULL)
    {
        num=strToInt(str);
        printf("%d\n",num);
    }
    return 0;
}
int strToInt(char str[])
{
    double num=0;
    int i,j,len;
    int a[11];
    char str1[11];
    if (str[0]>'9' || str[0]<'0')
    {
        return 0;
    }
    else if (str[0]=='\0' || str[0]=='\n')
    {
        return -1;
    }
    else
    {
        for (i=0,j=0;;)
        {
            if (str[i]>='0' && str[i]<='9')
            {
                str1[j]=str[i];
                i++;
                j++;
            }
            else
                i++;
            if (str[i]=='\0')
            {
                str1[j]=str[i];
                break;
            }
        }
        len=strlen(str1)-1;

        for (i=0;len>=0;)
        {
            num+=(str1[i]-48)*pow(10,len);
            i++;
            len--;
        }
        return (int)num;
    }
}

#include <math.h>
#include <stdio.h>
#include <string.h>
int main()
{
    int strToInt(char str[]);
    char str[11];
    gets(str);
    printf("%d",strToInt(str));
    while (gets(str)!=NULL)
    {
        printf("\n%d",strToInt(str));
    }
    return 0;
}
int strToInt(char str[])
{
    double num=0;
    int i,j,len;
    int a[11];
    char str1[11];
    if (str[0]=='\0' || str[0]=='\n')
    {
        return -1;
    }
    else if (str[0]>'9' || str[0]<'0')
    {
        return 0;
    }
    else
    {
        for (i=0,j=0;;)
        {
            if (str[i]>='0' && str[i]<='9')
            {
                str1[j]=str[i];
                i++;
                j++;
            }
            else
                i++;
            if (str[i]=='\0')
            {
                str1[j]=str[i];
                break;
            }
        }
        len=sizeof(str1)/sizeof(char)-2;

        for (i=0; len>=0;)
        {
            num+=(str1[i]-48)*pow(10,len);
            i++;
            len--;
        }
        return (int)num;
    }
}