#include <stdio.h>
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#include <math.h>
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#include <stdlib.h>
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int main(){
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    int m1,s1,m2,s2,m3,s3,a;
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    scanf("%d %d %d %d",&m1,&s1,&m2,&s2);
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    if((m1>=0)&&(m1<=59)&&(s1>=0)&&(s1<=59)&&(m2>=0)&&(m2<=59)&&(s2>=0)&&(s2<=59))
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    {
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        printf("DA\n");
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a=abs((m1*60+s1)-(m2*60+s2));
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        m3=a/60;
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        s3=a-m3*60;
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        printf("%d %d",m3,s3);
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    }
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    else
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        printf("NE");
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    return 0;
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}