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

struct smaps_sizes {
    int Pss;
    int Rss;
};

int main(const int argc, const char **argv)
{
    const char *filename = argv[1];
    FILE *file = fopen(filename, "r");
    struct smaps_sizes sizes;
    memset(&sizes, 0, sizeof sizes);

    if (!file) {
        perror(filename);
        return 1;
    }

    char line [BUFSIZ];
    while (fgets(line, sizeof line, file))
    {
        char substr[32];
        int n;
				if (sscanf(line, "%31[^:]: %d", substr, &n) == 2)
        {
            if (strcmp(substr, "Pss") == 0)            { sizes.Pss += n; }
            else if (strcmp(substr, "Rss") == 0)            { sizes.Rss += n; }
        }
    }
    fclose(file);

    printf("Pss %d\n", sizes.Pss);
    printf("Rss %d\n", sizes.Rss);

    return 0;
}