Game time with minutes

#include<stdio.h>
int main()
{
    int srth,endh,srtm,endm,hour,mnt;
    scanf("%d %d %d %d",&srth,&srtm,&endh,&endm);
    if(endm<srtm)
    {
        endm=(60+endm);
        endh=endh-1;
        mnt=endm-srtm;
        if(srth>endh)
        {
            hour=((endh+24)-srth);
        }
        else
        {
            hour=(endh-srth);
        }
        printf("O JOGO DUROU %d HORA(S) E %d MINUTO(S)\n",hour,mnt);
    }
    else if(endm>srtm)
    {
        mnt=endm-srtm;
        if(srth>endh)
        {
            hour=(endh+24)-srth;
        }
        else
        {
            hour=endh-srth;
        }
        printf("O JOGO DUROU %d HORA(S) E %d MINUTO(S)\n",hour,mnt);
    }
    else if(srtm==endm && srth==endh)
    {
        printf("O JOGO DUROU 24 HORA(S) E 0 MINUTO(S)\n");
    }

    return 0;
}