#This is my PYTHON program
import random;
n=4;
m=5;
masA=[];
masB=[];
i=j=int();
k=int();
f=int();
for i in range(0,n,1):
    masA.append([]);
    for j in range(0,m,1):
        masA[i].append(0);
        masA[i][j]=random.randint(-50,50);
print(f"\nMatrix {n}*{m} masA=:");
for i in range (0,n,1):
    for j in range (0,m,1):
        print(f"{masA[i][j]:3}", end="|");
f=0;
for i in range (0,n,1):
    k=0;
    for j in range(0,m,1):
        if masA[i][j]>0:
            masB.append(0);
            masB[f]=masA[i][j];
            f=f+1;
            k=k+1;
print(f"k={k:5}");
print(f"\nmasB: {masB}");             

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