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

int func(char *str)
{
    int i = 0, j, k = 0, valmul = 0, cnt = 0;
    if (!(str[i] >= '0' && str[i] <= '9' || str[i] == 'x' || str[i] == ' ')) // check if not fit return -1
        return -1;
    for (i = 0; i < strlen(str); i++) // run on the string
    {
        while ((str[k] != ' ') && (str[k] != '\0')) // run if not space and not end string
        {
            if (str[k] == 'x')
            {
                valmul = str[k + 1] - '0';//valmal=the value after the x (-'0' convert to int from char)
                for (j = 0; j < valmul; j++)
                    printf("%c", str[k - 1]);//printf the value before x valmul times
            }
            printf("%c", str[k]);
            k++;
        }
        cnt++;//to return how much
        printf("\n");
        i = k++;//to over after the space
    }
    return cnt;
}
void main()
{
    char str[20]; int val;
    gets(str);
    val = func(str);
    printf("%d", val);
}